Fix the output messages when no staged files

Author: yasukotelin

main.go

@@ -40,7 +40,7 @@ func mainAction(c *cli.Context) error {
 	fmt.Println()
 	stagedFilesLen := len(stagedFiles)
 	if stagedFilesLen == 0 {
-		fmt.Println("No staged files.")
+		fmt.Println(" No staged files.")
 	}
 	for i, file := range stagedFiles {
 		fmt.Printf(" [%d]\t%v\t%v\n", i+1, file.Status, file.Path)
@@ -51,7 +51,7 @@ func mainAction(c *cli.Context) error {
 	fmt.Println()
 	unstagedFilesLen := len(unstagedFiles)
 	if unstagedFilesLen == 0 {
-		fmt.Println("No unstaged files.")
+		fmt.Println(" No unstaged files.")
 	}
 	for i, file := range unstagedFiles {
 		fmt.Printf(" [%d]\t%v\t%v\n", i+1+stagedFilesLen, file.Status, file.Path)