CVS domivogt: * Fixed distclean/distcheck targets.

[FVWM CVS]

CVSROOT:        /home/cvs/fvwm
Module name:    fvwm
Changes by:     domivogt        07/07/19 05:42:20

Modified files:
        doc            : ChangeLog Makefile.am 
        doc/fvwm       : Makefile.am 
        doc/images     : Makefile.am 
        doc/images/svg_rendering: Makefile.am 

Log message:
* Fixed distclean/distcheck targets.