Fixed spacing.

packages/flutter_tools/lib/src/base/process.dart

@@ -94,7 +94,7 @@ String runSync(List<String> cmd, { String workingDirectory }) {
 /// Return the platform specific name for the given Dart SDK binary. So, `pub`
 /// ==> `pub.bat`.  The default SDK location can be overridden with a specified
 /// [sdkLocation].
-String sdkBinaryName(String name, {String sdkLocation}) {
+String sdkBinaryName(String name, { String sdkLocation }) {
   return path.absolute(path.join(sdkLocation ?? dartSdkPath, 'bin', Platform.isWindows ? '$name.bat' : name));
 }