[dwm] Bug in idxoftag (hg tip)

[Nibble]

Hi there,

I think there is a bug in the function idxoftag(const char *t), line 863 
exactly. In the hg tip that line looks like:

        for(i = 0; (i < LENGTH(tags)) && strcmp(tags[i], t); i++);

and should be, eg:

        for(i = 0; t && (i < LENGTH(tags)) && strcmp(tags[i], t); i++);

due to t could be NULL (modkey+0, modkey+shift+0), so strcmp would crash dwm.

Kind regards,
Nibble