Fix errors reported by the func-call-spacing ESLint rule

http://eslint.org/docs/rules/func-call-spacing

external/umdutils/verifier.js

@@ -210,7 +210,7 @@ function readDependencies(rootPaths) {
       }
     });
     if (discovered.length === 0) {
-      throw new Error ('Some circular references exist: somewhere at ' +
+      throw new Error('Some circular references exist: somewhere at ' +
         left.join(','));
     }
     discovered.sort();

test/unit/primitives_spec.js

@@ -346,12 +346,12 @@ describe('primitives', function() {
   });
 
   describe('isRef', function () {
-    it ('handles non-refs', function () {
+    it('handles non-refs', function () {
       var nonRef = {};
       expect(isRef(nonRef)).toEqual(false);
     });
 
-    it ('handles refs', function () {
+    it('handles refs', function () {
       var ref = new Ref(1, 0);
       expect(isRef(ref)).toEqual(true);
     });