gitconfig: clarify diff commands

diff --git a/gitconfig.in b/gitconfig.in
index 5058769b9359865118fbd8944aa94d1b2625db39..846f013e56a8832e3e7d2d787c0ddf5850f4faa6 100644 (file)
--- a/gitconfig.in
+++ b/gitconfig.in
@@ -1,6 +1,6 @@
 # Global Git configuration file.
 
-# Copyright (C) 2011-2015  Simon Ruderich
+# Copyright (C) 2011-2017  Simon Ruderich
 #
 # This file is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -189,15 +189,14 @@
 
 # Allow diffing of some binary files.
 #
-# "sh -c '..' -" is used when the programs require additional arguments. The
-# last "-" is argv[0] which is passed to sh, the real arguments are passed
-# after "-" by git.
+# "sh -c '..' ARGV0" is used when the programs require additional arguments
+# which are passed after ARGV0 by git.
 [diff "gzip"]
        textconv = gzip -d -c
 [diff "pdf"]
-       textconv = sh -c 'exec pdftotext "$@" -' -
+       textconv = sh -c 'exec pdftotext "$@" -' ARGV0
 [diff "sqlite"]
-       textconv = sh -c 'exec sqlite3 "$@" .dump' -
+       textconv = sh -c 'exec sqlite3 "$@" .dump' ARGV0
 
 [log]
        # Display branches/tag names in log (same as log's --decorate option).