feature(spawnify) set spawn when "$" used

Author: coderaiser

lib/spawnify.js

@@ -68,7 +68,7 @@
                 '~', '>', '<', '#',
                 '*', '&', '{', '}',
                 '|', '\'','"', ';',
-                '`'
+                '`', '$'
             ],
 
             isSymbol    = isContain(command, symbolsExec);