fix typo(cli): 'include-dir' -> 'input-dir'

diff --git a/cli.js b/cli.js
index fad4062..3d80dbf 100755 (executable)
--- a/cli.js
+++ b/cli.js
@@ -299,7 +299,7 @@ cli.main(function(args, options) {
     var outputDir = options['output-dir'];
 
     if (!inputDir) {
-      cli.error('The option output-dir need to be use with the option include-dir. If you are working with only 1 file, use -o.');
+      cli.error('The option output-dir need to be use with the option input-dir. If you are working with only 1 file, use -o.');
       cli.exit(2);
     }