[gotidy] Tidy source code

This commit was generated by running `gotidy -w .`

Change-Id: I13292112467fb6a802940d835d065ef33f595f14
diff --git a/cache/cache.go b/cache/cache.go
index 8d99e1c..b502be0 100644
--- a/cache/cache.go
+++ b/cache/cache.go
@@ -18,7 +18,7 @@
 	Get(key Key) (interface{}, bool)
 
 	// Check if a key exsists in cache.
-	Contains(key Key) (bool)
+	Contains(key Key) bool
 
 	// Removes a key from the cache.
 	Remove(key Key) interface{}
diff --git a/cmd/botanist/zedboot.go b/cmd/botanist/zedboot.go
index 41a6bfd..6198e20 100644
--- a/cmd/botanist/zedboot.go
+++ b/cmd/botanist/zedboot.go
@@ -236,7 +236,6 @@
 		return err
 	}
 
-
 	// Boot fuchsia.
 	var bootMode int
 	if cmd.netboot {
diff --git a/cmd/debroot/main.go b/cmd/debroot/main.go
index 2fd29fa..b4b0e2e 100644
--- a/cmd/debroot/main.go
+++ b/cmd/debroot/main.go
@@ -392,7 +392,7 @@
 	}
 
 	// Ensure that we don't have duplicate file names that only differ in case.
-	type rename struct { oldpath, newpath string }
+	type rename struct{ oldpath, newpath string }
 	renames := []rename{}
 
 	for _, d := range []string{"usr/include/linux"} {
@@ -423,7 +423,7 @@
 				for i, p := range ps {
 					if i > 0 {
 						ext := filepath.Ext(p)
-						renames = append(renames, rename{ p, p[:len(p)-len(ext)] + strings.Repeat("_", i) + ext })
+						renames = append(renames, rename{p, p[:len(p)-len(ext)] + strings.Repeat("_", i) + ext})
 					}
 				}
 			}
diff --git a/cmd/dev_finder/list.go b/cmd/dev_finder/list.go
index 4e93a4e..28bc049 100644
--- a/cmd/dev_finder/list.go
+++ b/cmd/dev_finder/list.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package main
 
 import (
diff --git a/cmd/mdnstool/main.go b/cmd/mdnstool/main.go
index 7a2e1da..e6f5762 100644
--- a/cmd/mdnstool/main.go
+++ b/cmd/mdnstool/main.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package main
 
 import (
diff --git a/cmd/testrunner/output.go b/cmd/testrunner/output.go
index 5370965..86bb335 100644
--- a/cmd/testrunner/output.go
+++ b/cmd/testrunner/output.go
@@ -84,8 +84,8 @@
 
 // AddFile registers a file on disk as a file to include in the summary.
 func (o *SummaryOutput) AddFile(name, path string) {
-		if o.Summary.Outputs == nil {
-			o.Summary.Outputs = make(map[string]string)
-		}
-		o.Summary.Outputs[name] = path
+	if o.Summary.Outputs == nil {
+		o.Summary.Outputs = make(map[string]string)
+	}
+	o.Summary.Outputs[name] = path
 }
diff --git a/digest/digest_test.go b/digest/digest_test.go
index 5e61865..8607a48 100644
--- a/digest/digest_test.go
+++ b/digest/digest_test.go
@@ -9,14 +9,14 @@
 )
 
 var c = &credentials{
-	username:   "admin",
-	realm:      "Digest:4C1F0000000000000000000000000000",
-	nonce:      "GZHoABAHAAAAAAAAtejSfCEQLbW+c/fM",
-	uri:        "/index",
-	algorithm:  "MD5",
-	qop:        "auth",
-	method:     "POST",
-	password:   "password",
+	username:  "admin",
+	realm:     "Digest:4C1F0000000000000000000000000000",
+	nonce:     "GZHoABAHAAAAAAAAtejSfCEQLbW+c/fM",
+	uri:       "/index",
+	algorithm: "MD5",
+	qop:       "auth",
+	method:    "POST",
+	password:  "password",
 }
 
 var cnonce = "0a4f113b"
diff --git a/mdns/mdns.go b/mdns/mdns.go
index eff713c..7233b9a 100644
--- a/mdns/mdns.go
+++ b/mdns/mdns.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package mdns
 
 import (
diff --git a/mdns/mdns_test.go b/mdns/mdns_test.go
index 8832eb8..9d574c7 100644
--- a/mdns/mdns_test.go
+++ b/mdns/mdns_test.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package mdns
 
 import (
diff --git a/resultstore/mocks/proto_mocks.go b/resultstore/mocks/proto_mocks.go
index a9ea6f8..d17e5d1 100644
--- a/resultstore/mocks/proto_mocks.go
+++ b/resultstore/mocks/proto_mocks.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 // Code generated by MockGen. DO NOT EDIT.
 // Source: google.golang.org/genproto/googleapis/devtools/resultstore/v2 (interfaces: ResultStoreUploadClient)
 
diff --git a/retry/backoff.go b/retry/backoff.go
index 978f91b..be30888 100644
--- a/retry/backoff.go
+++ b/retry/backoff.go
@@ -33,6 +33,7 @@
 }
 
 func (b *ConstantBackoff) Reset() {}
+
 func (b *ConstantBackoff) Next() time.Duration { return b.interval }
 
 func NewConstantBackoff(d time.Duration) *ConstantBackoff {
@@ -40,7 +41,7 @@
 }
 
 type maxTriesBackoff struct {
-	backOff Backoff
+	backOff  Backoff
 	maxTries uint64
 	numTries uint64
 }
diff --git a/serial/serial_linux.go b/serial/serial_linux.go
index a93db9e..22e7e17 100644
--- a/serial/serial_linux.go
+++ b/serial/serial_linux.go
@@ -13,7 +13,7 @@
 	"golang.org/x/sys/unix"
 )
 
-var supportedBaudRates = map[int]uint32 {
+var supportedBaudRates = map[int]uint32{
 	50:      unix.B50,
 	75:      unix.B75,
 	110:     unix.B110,
@@ -51,7 +51,7 @@
 	if !ok {
 		return nil, fmt.Errorf("unsupported baud rate: %d", baudRate)
 	}
-	if timeoutSecs < 0 || (timeoutSecs * 10) > (1 << 8) {
+	if timeoutSecs < 0 || (timeoutSecs*10) > (1<<8) {
 		return nil, fmt.Errorf("timeout must be between 0 and 25, got: %d", timeoutSecs)
 	}
 	f, err := os.OpenFile(name, unix.O_RDWR|unix.O_NOCTTY|unix.O_NONBLOCK, 0666)
@@ -59,12 +59,12 @@
 		return nil, err
 	}
 	t := unix.Termios{
-		Iflag: unix.IGNPAR,
-		Cflag: unix.CREAD|unix.CLOCAL|unix.CS8|rate,
+		Iflag:  unix.IGNPAR,
+		Cflag:  unix.CREAD | unix.CLOCAL | unix.CS8 | rate,
 		Ispeed: rate,
 		Ospeed: rate,
 	}
-	t.Cc[unix.VTIME] = uint8(timeoutSecs*10)
+	t.Cc[unix.VTIME] = uint8(timeoutSecs * 10)
 	_, _, errno := unix.Syscall6(
 		unix.SYS_IOCTL,
 		uintptr(f.Fd()),
diff --git a/testrunner/result.go b/testrunner/result.go
index 6753176..66a7acf 100644
--- a/testrunner/result.go
+++ b/testrunner/result.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package testrunner
 
 import (
diff --git a/testrunner/ssh_runner.go b/testrunner/ssh_runner.go
index 2feea9c..b30193b 100644
--- a/testrunner/ssh_runner.go
+++ b/testrunner/ssh_runner.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package testrunner
 
 import (
diff --git a/testrunner/tests.go b/testrunner/tests.go
index 9d6de37..dc4cd2a 100644
--- a/testrunner/tests.go
+++ b/testrunner/tests.go
@@ -1,3 +1,7 @@
+// Copyright 2019 The Fuchsia Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
 package testrunner
 
 import (
diff --git a/tftp/tftp.go b/tftp/tftp.go
index dbbf244..6d5399f 100644
--- a/tftp/tftp.go
+++ b/tftp/tftp.go
@@ -38,15 +38,15 @@
 )
 
 const (
-	ErrorUndefined        = uint16(0)     // Not defined, see error message (if any)
-	ErrorFileNotFound     = uint16(1)     // File not found
-	ErrorAccessViolation  = uint16(2)     // Access violation
-	ErrorDiskFull         = uint16(3)     // Disk full or allocation exceeded
-	ErrorIllegalOperation = uint16(4)     // Illegal TFTP operation
-	ErrorUnknownID        = uint16(5)     // Unknown transfer ID
-	ErrorFileExists       = uint16(6)     // File already exists
-	ErrorNoSuchUser       = uint16(7)     // No such user
-	ErrorBadOptions       = uint16(8)     // Bad options
+	ErrorUndefined        = uint16(0) // Not defined, see error message (if any)
+	ErrorFileNotFound     = uint16(1) // File not found
+	ErrorAccessViolation  = uint16(2) // Access violation
+	ErrorDiskFull         = uint16(3) // Disk full or allocation exceeded
+	ErrorIllegalOperation = uint16(4) // Illegal TFTP operation
+	ErrorUnknownID        = uint16(5) // Unknown transfer ID
+	ErrorFileExists       = uint16(6) // File already exists
+	ErrorNoSuchUser       = uint16(7) // No such user
+	ErrorBadOptions       = uint16(8) // Bad options
 
 	// ErrorBusy is a Fuchsia-specific extension to the set of TFTP error
 	// codes, meant to indicate that the server cannot currently handle a