src: style and whitespace fixes

src/opnsense/mvc/app/library/OPNsense/Core/Shell.php

@@ -73,7 +73,7 @@ class Shell
     {
         if (!is_array($command)) {
             $command = array($command);
-	}
+        }
 
         foreach ($command as $comm) {
             $this->execSingle($comm, $mute, $output);

src/opnsense/service/modules/__init__.py

@@ -40,4 +40,3 @@ def singleton(cls, *args, **kwargs):
             instances[cls] = cls(*args, **kwargs)
         return instances[cls]
     return getinstance
-

src/opnsense/www/js/opnsense_bootgrid_plugin.js

@@ -214,4 +214,3 @@ $.fn.UIBootgrid = function (params) {
         }
     }));
 };
-