use jsnext:main field for magic-string

gobblefile.js

@@ -8,12 +8,10 @@ var node = src
 		entry: 'rollup.js',
 		dest: 'rollup.js',
 		format: 'cjs',
-		external: [ 'sander', 'path', 'acorn', 'magic-string' ]
+		external: [ 'sander', 'acorn' ]
 	})
 	.transform( 'babel' );
 
-var absolutePath = /^(?:\/|(?:[A-Za-z]:)?\\)/;
-
 var browserPlaceholders = {
 	sander: fs.readFileSync( 'browser/sander.js' ).toString()
 };
@@ -27,7 +25,7 @@ var browser = src
 			if ( ~id.indexOf( 'sander.js' ) ) return browserPlaceholders.sander;
 			return fs.readFileSync( id ).toString();
 		},
-		external: [ 'acorn', 'magic-string' ]
+		external: [ 'acorn' ]
 	})
 	.transform( 'browserify', {
 		entries: [ './rollup.browser' ],

package.json

@@ -40,7 +40,7 @@
     "gobble-browserify": "^0.6.1",
     "gobble-cli": "^0.4.2",
     "gobble-esperanto-bundle": "^0.2.0",
-    "gobble-rollup": "^0.6.0",
+    "gobble-rollup": "^0.7.0",
     "gobble-rollup-babel": "^0.1.0",
     "mocha": "^2.2.4",
     "source-map": "^0.1.40"
@@ -48,7 +48,7 @@
   "dependencies": {
     "acorn": "^1.1.0",
     "chalk": "^1.0.0",
-    "magic-string": "^0.6.4",
+    "magic-string": "^0.6.5",
     "minimist": "^1.1.1",
     "sander": "^0.3.3",
     "source-map-support": "^0.3.1"