X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=contrib%2Fdifftool%2Fgit-difftool;h=0deda3a0e41511bb1b71d30d335b4909e8719169;hb=78360b576acb0ee47c90552cb3f976a3c6ba4d6a;hp=1fc087c5fc99962cc3b62810e4df97ebf7439a0c;hpb=8b75d31c945c9361331db8cd554f25a8ea6abc4a;p=git.git

diff --git a/contrib/difftool/git-difftool b/contrib/difftool/git-difftool
index 1fc087c5f..0deda3a0e 100755
--- a/contrib/difftool/git-difftool
+++ b/contrib/difftool/git-difftool
@@ -4,7 +4,7 @@
 # This is a wrapper around the GIT_EXTERNAL_DIFF-compatible
 # git-difftool-helper script.  This script exports
 # GIT_EXTERNAL_DIFF and GIT_PAGER for use by git, and
-# GIT_NO_PROMPT and GIT_MERGE_TOOL for use by git-difftool-helper.
+# GIT_DIFFTOOL_NO_PROMPT and GIT_DIFF_TOOL for use by git-difftool-helper.
 # Any arguments that are unknown to this script are forwarded to 'git diff'.
 
 use strict;
@@ -18,8 +18,7 @@ my $DIR = abs_path(dirname($0));
 sub usage
 {
 	print << 'USAGE';
-
-usage: git difftool [--no-prompt] [--tool=tool] ["git diff" options]
+usage: git difftool [--tool=<tool>] [--no-prompt] ["git diff" options]
 USAGE
 	exit 1;
 }
@@ -50,12 +49,12 @@ sub generate_command
 		}
 		if ($arg eq '-t' or $arg eq '--tool') {
 			usage() if $#ARGV <= $idx;
-			$ENV{GIT_MERGE_TOOL} = $ARGV[$idx + 1];
+			$ENV{GIT_DIFF_TOOL} = $ARGV[$idx + 1];
 			$skip_next = 1;
 			next;
 		}
 		if ($arg =~ /^--tool=/) {
-			$ENV{GIT_MERGE_TOOL} = substr($arg, 7);
+			$ENV{GIT_DIFF_TOOL} = substr($arg, 7);
 			next;
 		}
 		if ($arg eq '--no-prompt') {