Add period on line 9

Added period on line 9 to match other comments

Author: jshen212

src/index.js

@@ -6,7 +6,7 @@ import compose from './compose'
 
 /*
 * This is a dummy function to check if the function name has been altered by minification.
-* If the function has been minified and NODE_ENV !== 'production', warn the user
+* If the function has been minified and NODE_ENV !== 'production', warn the user.
 */
 function isCrushed() {}