CVS griph: fix compiler warnings and C89 compatibility

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     griph   09/08/26 05:21:51

Modified files:
        docs           : ChangeLog DEVELOPERS 
        modules        : ChangeLog 
        modules/FvwmEvent: FvwmEvent.c 
        modules/FvwmProxy: FvwmProxy.c 

Log message:
fix compiler warnings and C89 compatibility