Spelling fixes

* appropriate
* assumption
* attach
* because
* building
* customized
* mapping
* propagated

Signed-off-by: Josh Soref <jsoref@gmail.com>

cli/command/service/helpers.go

@@ -11,7 +11,7 @@ import (
 )
 
 // waitOnService waits for the service to converge. It outputs a progress bar,
-// if appopriate based on the CLI flags.
+// if appropriate based on the CLI flags.
 func waitOnService(ctx context.Context, dockerCli *command.DockerCli, serviceID string, opts *serviceOptions) error {
 	errChan := make(chan error, 1)
 	pipeReader, pipeWriter := io.Pipe()

cli/command/service/logs.go

@@ -237,7 +237,7 @@ type logWriter struct {
 func (lw *logWriter) Write(buf []byte) (int, error) {
 	// this works but ONLY because stdcopy calls write a whole line at a time.
 	// if this ends up horribly broken or panics, check to see if stdcopy has
-	// reneged on that asssumption. (@god forgive me)
+	// reneged on that assumption. (@god forgive me)
 	// also this only works because the logs format is, like, barely parsable.
 	// if something changes in the logs format, this is gonna break
 

cli/command/service/progress/progress.go

@@ -233,7 +233,7 @@ func writeOverallProgress(progressOut progress.Output, numerator, denominator in
 type replicatedProgressUpdater struct {
 	progressOut progress.Output
 
-	// used for maping slots to a contiguous space
+	// used for mapping slots to a contiguous space
 	// this also causes progress bars to appear in order
 	slotMap map[int]int