[Bugfix] Render "Ok" and "Cancel" button correctly when compiled with GNUTLS.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4232 3789f03b-4d11-0410-bbf8-ca57d06f2519

unix/vncviewer/OptionsDialog.h

@@ -198,6 +198,8 @@ public:
     y += secVnc.height();
     secPlain.move(xPad, y);
     y += secPlain.height();
+
+    xPad -= SECOND_COL_XPAD;
 #endif
 
     /* Render "OK" and "Cancel" buttons */