fix(): set correct jshint esversion depending on coffeescript's v…

…ersion

  * `esversion: 5` when `coffeescript@<2`
  * `esversion: 6` otherwise

lib/hint.coffee

@@ -1,6 +1,8 @@
 CoffeeScript    = require( 'coffeescript' )
+csVersion       = require( 'coffeescript/package.json' ).version
 fs              = require( 'fs' )
 jshint          = require( 'jshint' ).JSHINT
+semver          = require( 'semver' )
 _               = require( 'underscore' )
 
 
@@ -43,6 +45,11 @@ errorsToSkip[ error.code ]  = error for error in [
     code:           'W018'
     args:           a: '!'
 
+,
+    ##  > Unnecessary semicolon.
+    ##
+    code:           'W032'
+
 ,
     ##  > Bad number '{a}'.
     ##
@@ -93,6 +100,12 @@ hintFiles = ( paths, config, log ) ->
             config.options
     )
 
+
+    ##  Ensure a matching `esversion` is set, depending on whether this is `coffeescript@<2`.
+    ##
+    options.esversion = if semver.satisfies( csVersion, '<2' ) then 5 else 6
+
+
     return _.map( paths, ( path ) ->
 
         try

package.json

@@ -8,6 +8,7 @@
   "dependencies": {
     "jshint": "^2.9.5",
     "optimist": "~0.6.1",
+    "semver": "^5.4.1",
     "underscore": "~1.8.3"
   },
   "description": "Checks CoffeeScript source for errors using JSHint",