support -f flag for --follow in start-build

pkg/cmd/cli/cmd/startbuild.go

@@ -91,8 +91,8 @@ func NewCmdStartBuild(fullName string, f *clientcmd.Factory, in io.Reader, out i
 	cmd.Flags().StringSliceVarP(&o.Env, "env", "e", o.Env, "Specify key value pairs of environment variables to set for the build container.")
 	cmd.Flags().StringVar(&o.FromBuild, "from-build", o.FromBuild, "Specify the name of a build which should be re-run")
 
-	cmd.Flags().BoolVar(&o.Follow, "follow", o.Follow, "Start a build and watch its logs until it completes or fails")
-	cmd.Flags().BoolVar(&o.WaitForComplete, "wait", o.WaitForComplete, "Wait for a build to complete and exit with a non-zero return code if the build fails")
+	cmd.Flags().BoolVarP(&o.Follow, "follow", "f", o.Follow, "Start a build and watch its logs until it completes or fails")
+	cmd.Flags().BoolVarP(&o.WaitForComplete, "wait", "w", o.WaitForComplete, "Wait for a build to complete and exit with a non-zero return code if the build fails")
 
 	cmd.Flags().StringVar(&o.FromFile, "from-file", o.FromFile, "A file to use as the binary input for the build; example a pom.xml or Dockerfile. Will be the only file in the build source.")
 	cmd.Flags().StringVar(&o.FromDir, "from-dir", o.FromDir, "A directory to archive and use as the binary input for a build.")