Description of problem: documentation is not found if system uses a non-default
TEXDOCS path


Version-Release number of selected component (if applicable):


How reproducible: always


Steps to Reproduce:
1. add non-standard directory to TEXDOCS in texmf.cnf
2. texdoc fails to find the new documentation
3.
  
Actual results:


Expected results:


Additional info:

Here is the patch posted to the tex-live list by Frank Küster:

Subject: [tex-live] texdoc should always use TEXDOCS

Hi,

a Debian user has noticed that, although texdoc uses 'kpsewhich
--format="TeX system documentation"' and thus the $TEXDOCS variable for
its main work, the search mode accesses $TEXMF/doc directly and ignores
changes/additions in TEXDOC.

The following patch would make it more consistent:

--- src/Upstream-source/TeXLive/Build/source/texk/tetex/texdoc.orig	2007-03-
15 16:36:30.000000000 +0100
+++ src/Upstream-source/TeXLive/Build/source/texk/tetex/texdoc	2007-03-15 
16:37:20.000000000 +0100
@@ -140,7 +140,7 @@
 do
   case $mode in
     search)
-      find `kpsewhich --expand-path='$TEXMF/doc' | tr : ' '` -type f -print |
+      find `kpsewhich --expand-path='$TEXDOCS' | tr : ' '` -type f -print |
         egrep $name
       continue
       ;;

(too simple to be copyrightable, of course).