commit f8822d40ca17af5fdc4703fca2dfc4b01110806e
author Eric Blake <eblake@redhat.com> Fri Dec 30 21:45:16 2016 -0600
committer Eric Blake <eblake@redhat.com> Tue Jan 03 16:55:50 2017 -0600
tree 261bf8ea5e23d2109791d8a429f13d2d8dc09f99
parent 8a1c7bd2101f46513d1a9bfba0297baa58acf409

doc: drop obsolete @setcontentsaftertitlepage

texinfo 6.1 complains (during 'make dvi'):

/home/eblake/m4-1.4/doc/./m4.texi:9: @setcontentsaftertitlepage has been remove
d as a Texinfo command; move your @contents command if you want the contents af
ter the title page..

It turns out that eliminating the command has no effect - modern
tools correctly emit the contents in-place, right after the title
page, so it was leftover cruft from an older time.

* doc/m4.texi: Satisfy newer texinfo.

Signed-off-by: Eric Blake <eblake@redhat.com>
(cherry picked from commit c7a3591347238aa34defded34609007b326a0984)