lint: fix lint issues

Forgot to fix these before landing the patch.

Fixes: e17c5a72

lib/child_process.js

@@ -607,15 +607,13 @@ exports.execFile = function(file /* args, options, callback */) {
   var pos = 1;
   if (pos < arguments.length && Array.isArray(arguments[pos])) {
     args = arguments[pos++];
-  }
-  else if(pos < arguments.length && arguments[pos] == null) {
+  } else if (pos < arguments.length && arguments[pos] == null) {
     pos++;
   }
 
   if (pos < arguments.length && typeof arguments[pos] === 'object') {
     options = util._extend(options, arguments[pos++]);
-  }
-  else if(pos < arguments.length && arguments[pos] == null) {
+  } else if (pos < arguments.length && arguments[pos] == null) {
     pos++;
   }