CVS domivogt: * Fixed compiler warning.

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     domivogt        05/09/29 05:15:20

Modified files:
        .              : ChangeLog 
        fvwm           : frame.c 

Log message:
* Fixed compiler warning.