xsrc/49035: Some XOrg man pages miss keywords substitution

[njoly%pasteur.fr@localhost]

>Number:         49035
>Category:       xsrc
>Synopsis:       Some XOrg man pages miss keywords substitution
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    xsrc-manager
>State:          open
>Class:          doc-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jul 26 12:10:00 +0000 2014
>Originator:     Nicolas Joly
>Release:        NetBSD 6.99.49
>Organization:
Institut Pasteur
>Environment:
System: NetBSD lanfeust.sis.pasteur.fr 6.99.49 NetBSD 6.99.49 (LANFEUST) #47: 
Sat Jul 26 13:48:38 CEST 2014 
njoly%lanfeust.sis.pasteur.fr@localhost:/local/src/NetBSD/obj.amd64/sys/arch/amd64/compile/LANFEUST
 amd64
Architecture: x86_64
Machine: amd64
>Description:
Checking xorg.conf(5) man page, i found that a few keywords were not substitued
as they should to be. This include "__xconfigdir__", "__sysconfdir__",
"__datadir__", "__modulepath__" and "__xkbdir__".

A few other XOrg man page exhibit the same problem :

find /usr/X11R7/man/man* -type f | xargs grep -l __ 
/usr/X11R7/man/man1/resize.1
/usr/X11R7/man/man1/sessreg.1
/usr/X11R7/man/man1/startx.1
/usr/X11R7/man/man1/xinit.1
/usr/X11R7/man/man1/xmodmap.1
/usr/X11R7/man/man1/xterm.1
/usr/X11R7/man/man1/Xorg.1
/usr/X11R7/man/man1/Xserver.1
/usr/X11R7/man/man3/Xaw.3
/usr/X11R7/man/man5/xorg.conf.5
/usr/X11R7/man/man7/X.7

njoly@lanfeust [X11R7/man]> find /usr/X11R7/man/man* -type f | xargs grep __   
/usr/X11R7/man/man1/resize.1:.TH RESIZE 1 "__app_date__" "__app_version__" "X 
Window System"
/usr/X11R7/man/man1/resize.1:sets this to "__default_termname__" if not already 
set.
/usr/X11R7/man/man1/sessreg.1:.BR __lastlog_file__ ,
/usr/X11R7/man/man1/sessreg.1:.BR __utmp_manpage__ (5)
/usr/X11R7/man/man1/startx.1:.if '__SCOMAN__'' .ig
/usr/X11R7/man/man1/startx.1:.I __libdir__/sys.startxrc
/usr/X11R7/man/man1/startx.1:.if !'x.__SCOMAN__'x.' .ig
/usr/X11R7/man/man1/startx.1:.if '__SCOMAN__'' .ig
/usr/X11R7/man/man1/startx.1:.I __libdir__/sys.startxrc
/usr/X11R7/man/man1/xinit.1:.B "xinit \-\^\- __bindir__/Xvnc  :1"
[...]

>How-To-Repeat:
find /usr/X11R7/man/man* -type f | xargs grep __
>Fix: