documentations tweaks for fmtutil.pl

git-svn-id: svn://tug.org/texlive/trunk@36821 c570f23f-e606-0410-a88d-b1316a301751

1 files changed, 11 insertions, 5 deletions

diff --git a/Master/texmf-dist/scripts/texlive/fmtutil.pl b/Master/texmf-dist/scripts/texlive/fmtutil.pl
index 8dce55d3dde..2621455298f 100755
--- a/Master/texmf-dist/scripts/texlive/fmtutil.pl
+++ b/Master/texmf-dist/scripts/texlive/fmtutil.pl
@@ -1051,7 +1051,7 @@ nothing else.
 If not operating in mktexfmt mode, the command line can be more general,
 and multiple formats can be generated, as follows.
 
-Optional behavior:
+Options:
   --cnffile FILE             read FILE instead of fmtutil.cnf
                              (can be given multiple times, in which case
                              all the files are used)
@@ -1066,7 +1066,7 @@ Optional behavior:
   --dolinks                  (not implemented, just for compatibility)
   --force                    (not implemented, just for compatibility)
 
-Valid commands for fmtutil:
+Commands:
   --all                      recreate all format files
   --missing                  create all missing format files
   --refresh                  recreate only existing format files
@@ -1155,12 +1155,18 @@ Disabling formats:
   and call $prg.
 
 
-MORE DOCUMENTATION STILL TO COME ...
+fmtutil vs. fmtutil-sys (fmtutil --sys):
 
-Report bugs to: tex-k\@tug.org
-TeX Live home page: <http://tug.org/texlive/>
+  When fmtutil-sys is run or the command line option --sys is used, 
+  TEXMFSYSCONFIG and TEXMFSYSVAR are used instead of TEXMFCONFIG and 
+  TEXMFVAR, respectively.  This is the primary difference between 
+  fmtutil-sys and fmtutil.
 
+  Other locations may be used if you give them on the command line, or
+  these trees don't exist, or you are not using the original TeX Live.
 
+Report bugs to: tex-k\@tug.org
+TeX Live home page: <http://tug.org/texlive/>
 EOF
 ;
   print &version();