Fixed permissions for development/webservices/otrs.RESTRequest.pl.

Default permission was set to:
-rwxr-xr-x  1 otrs  _www   3724 Jul 23 22:43 otrs.RESTRequest.pl

Now changed to:
-rw-rw--w-  1 otrs  _www   3724 Jul 23 22:43 otrs.RESTRequest.pl