[dwm] [PATCH] dwm-tip-nozerokeycode.diff

Hi!

I use my config.h on different hosts. On my notebook I defined the
multimedia keys without any modifier. on another host there are no
keycodes defined for these keys.
This leads XKeysymToKeycode to return 0.

Unfortunally XGrabKey grabs all keys for this specific modifier if
keycode is zero. To Prevent dwm from grabbing all keys I wrote a tiny
patch. Please apply it.

It's already included in dwm-gtx and works just fine.

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