CVS domivogt: * Fixed the "center" FvwmButtons button option.

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     domivogt        05/10/27 08:50:06

Modified files:
        modules        : ChangeLog 
        modules/FvwmButtons: parse.c 

Log message:
* Fixed the "center" FvwmButtons button option.