Typo in comment.

Author: satazor

lib/parse.js

@@ -53,12 +53,12 @@ function parseNonShell(parsed) {
 function parseShell(parsed) {
     var shellCommand;
 
-    // If node supports the shell options, there's no need to mimic its behavior
+    // If node supports the shell option, there's no need to mimic its behavior
     if (supportsShellOption) {
         return parsed;
     }
 
-    // Mimic nodejs shell option, see: https://github.com/nodejs/node/blob/b9f6a2dc059a1062776133f3d4fd848c4da7d150/lib/child_process.js#L335
+    // Mimic node shell option, see: https://github.com/nodejs/node/blob/b9f6a2dc059a1062776133f3d4fd848c4da7d150/lib/child_process.js#L335
     shellCommand = [parsed.command].concat(parsed.args).join(' ');
 
     if (isWin) {