Fix --include-path option. (typo instead of --include-paths).

The option should be --include-path. You can have multiple
--include-path options though. Add a test where this is the case.

lib/cli.js

@@ -81,8 +81,8 @@ exports = module.exports = function(args) {
     outFile = options.outFile = path.join(cwd, path.basename(inFile, '.scss') + '.css');
   }
 
-  // make sure it's an array
-  options.includePaths = argv['include-paths'];
+  // make sure it's an array.
+  options.includePaths = argv['include-path'];
   if (!Array.isArray(options.includePaths)) {
     options.includePaths = [options.includePaths];
   }
@@ -104,11 +104,11 @@ exports = module.exports = function(args) {
     var watchDir = argv.w;
 
     if (watchDir === true) {
-      watchDir = []
+      watchDir = [];
     } else if (!Array.isArray(watchDir)) {
       watchDir = [watchDir];
     }
-    watchDir.push(inFile)
+    watchDir.push(inFile);
 
     var throttledRender = throttle(render, options, emitter);
 

test/cli.js

@@ -60,11 +60,15 @@ describe('cli', function() {
     });
   });
 
-  it('should compile with --include-paths option', function(done){
-    var emitter = cli(['--include-paths', __dirname + '/lib', __dirname + '/include_path.scss']);
+  it('should compile with --include-path option', function(done){
+    var emitter = cli([
+      '--include-path', __dirname + '/lib',
+      '--include-path', __dirname + '/functions',
+      __dirname + '/include_path.scss'
+    ]);
     emitter.on('error', done);
     emitter.on('render', function(css){
-      assert.equal(css.trim(), 'body {\n  background: red; }');
+      assert.equal(css.trim(), 'body {\n  background: red;\n  color: blue; }');
       fs.unlink(process.cwd() + '/include_path.css', done);
     });
   });

test/functions/colorBlue.scss

+@function colorBlue() {
+  @return #0000FF;
+}

test/include_path.scss

 @import "vars";
+@import "colorBlue";
 
-body { background: $color; }
+body { background: $color; color: colorBlue(); }
\ No newline at end of file

test/test.js

@@ -109,9 +109,9 @@ describe("compile file with include paths", function(){
   it("should compile with render", function(done) {
     sass.render({
       file: path.resolve(__dirname, "include_path.scss"),
-      includePaths: [path.resolve(__dirname, "lib")],
+      includePaths: [path.resolve(__dirname, "lib"), path.resolve(__dirname, "functions")],
       success: function (css) {
-        done(assert.equal(css, "body {\n  background: red; }\n"));
+        done(assert.equal(css, "body {\n  background: red;\n  color: blue; }\n"));
       },
       error: function (error) {
         done(error);