Merge pull request #754 from cli/long-from

spell out PR text

command/pr_checkout.go

@@ -123,7 +123,7 @@ var prCheckoutCmd = &cobra.Command{
 	Short: "Check out a pull request in Git",
 	Args: func(cmd *cobra.Command, args []string) error {
 		if len(args) < 1 {
-			return errors.New("requires a PR number as an argument")
+			return errors.New("requires a pull request number as an argument")
 		}
 		return nil
 	},

command/repo.go

@@ -51,7 +51,7 @@ A repository can be supplied as an argument in any of the following formats:
 }
 
 var repoCloneCmd = &cobra.Command{
-	Use:   "clone <repo> [<directory>]",
+	Use:   "clone <repository> [<directory>]",
 	Args:  cobra.MinimumNArgs(1),
 	Short: "Clone a repository locally",
 	Long: `Clone a GitHub repository locally.