[Clean up] Reformat Tree

Run gofmt in jiri.

Change-Id: I2f029fa9c6223a9ffc75da2e4c0e0b875caef514
Reviewed-on: https://fuchsia-review.googlesource.com/c/jiri/+/678324
Reviewed-by: Nathan Mulcahey <nmulcahey@google.com>
Commit-Queue: Yuping Zhai <yupingz@google.com>
diff --git a/analytics_util/command.go b/analytics_util/command.go
index 15456a3..93373a9 100644
--- a/analytics_util/command.go
+++ b/analytics_util/command.go
@@ -20,9 +20,9 @@
 
 // string values allowed to be tracked
 var allowedStrings = map[string]struct{}{
-	"always": struct{}{},
-	"auto":   struct{}{},
-	"never":  struct{}{},
+	"always": {},
+	"auto":   {},
+	"never":  {},
 }
 
 func newCommand(name string, flags map[string]string) *Command {
@@ -57,7 +57,7 @@
 	value := ""
 	if len(c.flags) > 0 {
 		keys := []string{}
-		for k, _ := range c.flags {
+		for k := range c.flags {
 			keys = append(keys, k)
 		}
 		sort.Strings(keys)
diff --git a/envvar/envvar.go b/envvar/envvar.go
index b8a9c3d..1fb701f 100644
--- a/envvar/envvar.go
+++ b/envvar/envvar.go
@@ -297,7 +297,7 @@
 // Mutating the returned map does not affect x.
 func (x *Vars) ToMap() map[string]string {
 	snapshot := MergeMaps(x.base, x.deltaInsert)
-	for key, _ := range x.deltaRemove {
+	for key := range x.deltaRemove {
 		delete(snapshot, key)
 	}
 	return snapshot
@@ -331,7 +331,7 @@
 		cp := value
 		deltas[key] = &cp
 	}
-	for key, _ := range x.deltaRemove {
+	for key := range x.deltaRemove {
 		deltas[key] = nil
 	}
 	return deltas
diff --git a/gerrit/gerrit_test.go b/gerrit/gerrit_test.go
index 68cbc1a..dfebcf6 100644
--- a/gerrit/gerrit_test.go
+++ b/gerrit/gerrit_test.go
@@ -152,40 +152,40 @@
 		expectedTotal   string
 	}
 	testCases := []testCase{
-		testCase{
+		{
 			str:             "message...\nMultiPart: a/3",
 			expectNoMatches: true,
 		},
-		testCase{
+		{
 			str:             "message...\n1/3",
 			expectNoMatches: true,
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart:1/2",
 			expectedIndex: "1",
 			expectedTotal: "2",
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart: 1/2",
 			expectedIndex: "1",
 			expectedTotal: "2",
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart: 1 /2",
 			expectedIndex: "1",
 			expectedTotal: "2",
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart: 1/ 2",
 			expectedIndex: "1",
 			expectedTotal: "2",
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart: 1 / 2",
 			expectedIndex: "1",
 			expectedTotal: "2",
 		},
-		testCase{
+		{
 			str:           "message...\nMultiPart: 123/234",
 			expectedIndex: "123",
 			expectedTotal: "234",
@@ -220,15 +220,15 @@
 	`
 	got, err := parseGitCookieFile(strings.NewReader(gitCookieFileContent))
 	expected := map[string]*credentials{
-		"vanadium.googlesource.com": &credentials{
+		"vanadium.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "12345",
 		},
-		"vanadium-review.googlesource.com": &credentials{
+		"vanadium-review.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "54321",
 		},
-		".googlesource.com": &credentials{
+		".googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "12321",
 		},
@@ -252,7 +252,7 @@
 	`
 	got, err := parseGitCookieFile(strings.NewReader(gitCookieFileContentWithInvalidEntries))
 	expected := map[string]*credentials{
-		"vanadium.googlesource.com": &credentials{
+		"vanadium.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "12345",
 		},
@@ -274,11 +274,11 @@
 	`
 	got, err := parseNetrcFile(strings.NewReader(netrcFileContent))
 	expected := map[string]*credentials{
-		"vanadium.googlesource.com": &credentials{
+		"vanadium.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "12345",
 		},
-		"vanadium-review.googlesource.com": &credentials{
+		"vanadium-review.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "54321",
 		},
@@ -303,7 +303,7 @@
 	`
 	got, err := parseNetrcFile(strings.NewReader(netRcFileContentWithInvalidEntries))
 	expected := map[string]*credentials{
-		"vanadium-review.googlesource.com": &credentials{
+		"vanadium-review.googlesource.com": {
 			username: "git-johndoe.example.com",
 			password: "54321",
 		},
@@ -326,21 +326,21 @@
 	}
 	testCases := []testCase{
 		// Normal case
-		testCase{
+		{
 			ref:              "ref/changes/12/3412/2",
 			expectedCL:       3412,
 			expectedPatchSet: 2,
 		},
 		// Error cases
-		testCase{
+		{
 			ref:       "ref/123",
 			expectErr: true,
 		},
-		testCase{
+		{
 			ref:       "ref/changes/12/a/2",
 			expectErr: true,
 		},
-		testCase{
+		{
 			ref:       "ref/changes/12/3412/a",
 			expectErr: true,
 		},
diff --git a/gerrit/multipart_test.go b/gerrit/multipart_test.go
index c9edf9c..4168516 100644
--- a/gerrit/multipart_test.go
+++ b/gerrit/multipart_test.go
@@ -129,37 +129,37 @@
 		// Tests for non-multipart CLs.
 
 		// Both prevCLsMap and curCLs are empty.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{},
 			curCLs:     CLList{},
 			expected:   []CLList{},
 		},
 		// prevCLsMap is empty, curCLs is not.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{},
 			curCLs:     CLList{nonMultiPartCLs[0], nonMultiPartCLs[1]},
-			expected:   []CLList{CLList{nonMultiPartCLs[0]}, CLList{nonMultiPartCLs[1]}},
+			expected:   []CLList{{nonMultiPartCLs[0]}, {nonMultiPartCLs[1]}},
 		},
 		// prevCLsMap is not empty, curCLs is.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{nonMultiPartCLs[0].Reference(): nonMultiPartCLs[0]},
 			curCLs:     CLList{},
 			expected:   []CLList{},
 		},
 		// prevCLsMap and curCLs are not empty, and they have overlapping refs.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{
 				nonMultiPartCLs[0].Reference(): nonMultiPartCLs[0],
 				nonMultiPartCLs[1].Reference(): nonMultiPartCLs[1],
 			},
 			curCLs:   CLList{nonMultiPartCLs[1], nonMultiPartCLs[2]},
-			expected: []CLList{CLList{nonMultiPartCLs[2]}},
+			expected: []CLList{{nonMultiPartCLs[2]}},
 		},
 		// prevCLsMap and curCLs are not empty, and they have NO overlapping refs.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{nonMultiPartCLs[0].Reference(): nonMultiPartCLs[0]},
 			curCLs:     CLList{nonMultiPartCLs[1]},
-			expected:   []CLList{CLList{nonMultiPartCLs[1]}},
+			expected:   []CLList{{nonMultiPartCLs[1]}},
 		},
 
 		////////////////////////////////
@@ -167,40 +167,40 @@
 
 		// len(curCLs) > len(prevCLsMap).
 		// And the CLs in curCLs have different topics.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{multiPartCLs[0].Reference(): multiPartCLs[0]},
 			curCLs:     CLList{multiPartCLs[0], multiPartCLs[2]},
 			expected:   []CLList{},
 		},
 		// len(curCLs) > len(prevCLsMap).
 		// And the CLs in curCLs form a complete multi part cls set.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{multiPartCLs[0].Reference(): multiPartCLs[0]},
 			curCLs:     CLList{multiPartCLs[0], multiPartCLs[1]},
-			expected:   []CLList{CLList{multiPartCLs[0], multiPartCLs[1]}},
+			expected:   []CLList{{multiPartCLs[0], multiPartCLs[1]}},
 		},
 		// len(curCLs) == len(prevCLsMap).
 		// And cl[6] has a larger patchset than multiPartCLs[4] with identical cl number.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{
 				multiPartCLs[0].Reference(): multiPartCLs[0],
 				multiPartCLs[1].Reference(): multiPartCLs[1],
 			},
 			curCLs:   CLList{multiPartCLs[0], multiPartCLs[3]},
-			expected: []CLList{CLList{multiPartCLs[0], multiPartCLs[3]}},
+			expected: []CLList{{multiPartCLs[0], multiPartCLs[3]}},
 		},
 
 		////////////////////////////////
 		// Tests for mixed.
-		testCase{
+		{
 			prevCLsMap: CLRefMap{
 				multiPartCLs[0].Reference(): multiPartCLs[0],
 				multiPartCLs[1].Reference(): multiPartCLs[1],
 			},
 			curCLs: CLList{nonMultiPartCLs[0], multiPartCLs[0], multiPartCLs[3]},
 			expected: []CLList{
-				CLList{nonMultiPartCLs[0]},
-				CLList{multiPartCLs[0], multiPartCLs[3]},
+				{nonMultiPartCLs[0]},
+				{multiPartCLs[0], multiPartCLs[3]},
 			},
 		},
 	}
diff --git a/isatty/isatty.go b/isatty/isatty.go
index 0a3ad25..5925f72 100644
--- a/isatty/isatty.go
+++ b/isatty/isatty.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux || darwin
 // +build linux darwin
 
 package isatty
diff --git a/isatty/isatty_darwin.go b/isatty/isatty_darwin.go
index c6faabd..d97cac6 100644
--- a/isatty/isatty_darwin.go
+++ b/isatty/isatty_darwin.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build darwin
 // +build darwin
 
 package isatty
diff --git a/isatty/isatty_dummy.go b/isatty/isatty_dummy.go
index c1932c9..b540d12 100644
--- a/isatty/isatty_dummy.go
+++ b/isatty/isatty_dummy.go
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// +build !linux
-// +build !darwin
+//go:build !linux && !darwin
+// +build !linux,!darwin
 
 package isatty
 
diff --git a/isatty/isatty_linux.go b/isatty/isatty_linux.go
index 5b21ce8..aed97e9 100644
--- a/isatty/isatty_linux.go
+++ b/isatty/isatty_linux.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux
 // +build linux
 
 package isatty
diff --git a/osutil/exec_procfs.go b/osutil/exec_procfs.go
index cfa8fdc..17f5a3d 100644
--- a/osutil/exec_procfs.go
+++ b/osutil/exec_procfs.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build linux || netbsd || openbsd
 // +build linux netbsd openbsd
 
 package osutil
diff --git a/osutil/exec_sysctl.go b/osutil/exec_sysctl.go
index 1c5f57f..f01bd4a 100644
--- a/osutil/exec_sysctl.go
+++ b/osutil/exec_sysctl.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build freebsd || darwin
 // +build freebsd darwin
 
 package osutil
diff --git a/osutil/exec_windows.go b/osutil/exec_windows.go
index f47a4a3..00e5650 100644
--- a/osutil/exec_windows.go
+++ b/osutil/exec_windows.go
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
+//go:build windows
 // +build windows
 
 package osutil
diff --git a/simplemr/mr.go b/simplemr/mr.go
index 15f19d2..408e95b 100644
--- a/simplemr/mr.go
+++ b/simplemr/mr.go
@@ -56,7 +56,7 @@
 	s.Lock()
 	defer s.Unlock()
 	keys := make([]string, 0, len(s.data))
-	for k, _ := range s.data {
+	for k := range s.data {
 		keys = append(keys, k)
 	}
 	sort.Strings(keys)