[tilo][logger] Rename 'svc' field to 'client.

In a previous change, 'Service' was renamed to 'UploadClient'. This
fixes the name of Logger's Service field.

Change-Id: I2156866bbd35368aeacfb9483f248cf856875133
diff --git a/tilo/logger.go b/tilo/logger.go
index 66a78ba..b9bbd35 100644
--- a/tilo/logger.go
+++ b/tilo/logger.go
@@ -37,7 +37,7 @@
 // TODO(IN-699): Define constants for the ResultStore backends and document them here.
 func Start(ctx context.Context, environment resultstore.Environment, projectID string) (Logger, error) {
 	// Connect to ResultStore.
-	svc, err := resultstore.Connect(ctx, environment)
+	client, err := resultstore.Connect(ctx, environment)
 	if err != nil {
 		return nil, err
 	}
@@ -49,7 +49,7 @@
 		return nil, err
 	}
 
-	invocation, err := svc.CreateInvocation(ctx, &resultstore.Invocation{
+	invocation, err := client.CreateInvocation(ctx, &resultstore.Invocation{
 		ProjectID: projectID,
 		ID:        uuid.New().String(),
 		StartTime: time.Now(),
@@ -67,17 +67,17 @@
 	con.SetInvocationID(invocation.ID)
 	con.SetInvocationName(invocation.Name)
 
-	return &logger{con: con, svc: svc}, nil
+	return &logger{con: con, client: client}, nil
 }
 
 // Resume creates a new Logger for the Invocation identified by a resultstore.Context.
 func Resume(ctx context.Context, con resultstore.Context) (Logger, error) {
-	svc, err := resultstore.Connect(ctx, con.Environment())
+	client, err := resultstore.Connect(ctx, con.Environment())
 	if err != nil {
 		return nil, err
 	}
 
-	return &logger{con: con, svc: svc}, nil
+	return &logger{con: con, client: client}, nil
 }
 
 // Logger is an interface for recording Fuchsia test events in ResultStore.
@@ -108,13 +108,13 @@
 
 // The default Logger implementation
 type logger struct {
-	con resultstore.Context
-	svc resultstore.UploadClient
+	con    resultstore.Context
+	client resultstore.UploadClient
 }
 
 // NewLogger is Visible for testing. Use `Start` and `Resume` instead.
-func NewLogger(svc resultstore.UploadClient, con resultstore.Context) Logger {
-	return &logger{con: con, svc: svc}
+func NewLogger(client resultstore.UploadClient, con resultstore.Context) Logger {
+	return &logger{con: con, client: client}
 }
 
 func (l *logger) Context() resultstore.Context {
@@ -208,7 +208,7 @@
 		Status: status,
 	}
 
-	_, err = l.svc.UpdateInvocation(ctx, invocation, []string{statusAttributesField})
+	_, err = l.client.UpdateInvocation(ctx, invocation, []string{statusAttributesField})
 	return err
 }
 
@@ -233,7 +233,7 @@
 		filesField,
 	}
 
-	_, err = l.svc.UpdateTestAction(ctx, action, fieldsToUpdate)
+	_, err = l.client.UpdateTestAction(ctx, action, fieldsToUpdate)
 	return err
 }
 
@@ -256,7 +256,7 @@
 		statusAttributesField,
 	}
 
-	_, err = l.svc.UpdateConfiguredTarget(ctx, configuredTarget, fieldsToUpdate)
+	_, err = l.client.UpdateConfiguredTarget(ctx, configuredTarget, fieldsToUpdate)
 	return err
 }
 
@@ -266,7 +266,7 @@
 		return err
 	}
 
-	return l.svc.FinishConfiguredTarget(ctx, configuredTargetName)
+	return l.client.FinishConfiguredTarget(ctx, configuredTargetName)
 }
 
 func (l *logger) finishTarget(ctx context.Context, e TestFinishedEvent) error {
@@ -274,7 +274,7 @@
 	if err != nil {
 		return err
 	}
-	return l.svc.FinishTarget(ctx, targetName)
+	return l.client.FinishTarget(ctx, targetName)
 }
 
 func (l *logger) updateTarget(ctx context.Context, e TestFinishedEvent) error {
@@ -296,7 +296,7 @@
 		statusAttributesField,
 	}
 
-	_, err = l.svc.UpdateTarget(ctx, target, fieldsToUpdate)
+	_, err = l.client.UpdateTarget(ctx, target, fieldsToUpdate)
 	return err
 }
 
@@ -311,7 +311,7 @@
 		StartTime: e.StartTime,
 	}
 
-	_, err = l.svc.UpdateTarget(ctx, target, []string{startTimeField})
+	_, err = l.client.UpdateTarget(ctx, target, []string{startTimeField})
 	return err
 }
 
@@ -332,7 +332,7 @@
 		Properties:   l.dimensionSetToMap(e.Dimensions),
 	}
 
-	_, err = l.svc.CreateConfiguration(ctx, config, invocationName)
+	_, err = l.client.CreateConfiguration(ctx, config, invocationName)
 	return err
 }
 
@@ -355,7 +355,7 @@
 		StartTime: dummyStartTime,
 	}
 
-	target, err = l.svc.CreateTarget(ctx, target, invocationName)
+	target, err = l.client.CreateTarget(ctx, target, invocationName)
 	if err != nil {
 		return err
 	}
@@ -387,7 +387,7 @@
 		StartTime: e.StartTime,
 	}
 
-	configuredTarget, err = l.svc.CreateConfiguredTarget(ctx, configuredTarget, targetName)
+	configuredTarget, err = l.client.CreateConfiguredTarget(ctx, configuredTarget, targetName)
 	if err != nil {
 		return err
 	}
@@ -423,7 +423,7 @@
 		StartTime: e.StartTime,
 	}
 
-	action, err = l.svc.CreateTestAction(ctx, action, configuredTargetName)
+	action, err = l.client.CreateTestAction(ctx, action, configuredTargetName)
 	if err != nil {
 		return err
 	}
@@ -455,7 +455,7 @@
 		return err
 	}
 
-	return l.svc.FinishInvocation(ctx, invocationName)
+	return l.client.FinishInvocation(ctx, invocationName)
 }
 
 func (l *logger) invocationID() (string, error) {