FreeBSD 10 compatibility fix

On FreeBSD the whitespace around the ``=`` triggers a (cryptic) ``no such file or directory`` error. removing the whitespace like above fixes this.

system/sysctl

@@ -285,7 +285,7 @@ class SysctlModule(object):
                     self.fixed_lines.append(new_line)                    
 
         if self.args['name'] not in checked and self.args['state'] == "present":
-            new_line = "%s = %s\n" % (self.args['name'], self.args['value'])
+            new_line = "%s=%s\n" % (self.args['name'], self.args['value'])
             self.fixed_lines.append(new_line)                    
 
     # Completely rewrite the sysctl file