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-rw-r--r--builtin/difftool.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/builtin/difftool.c b/builtin/difftool.c
index c79fbbf67e..faa3507369 100644
--- a/builtin/difftool.c
+++ b/builtin/difftool.c
@@ -732,8 +732,9 @@ int cmd_difftool(int argc, const char **argv, const char *prefix)
} else if (dir_diff)
die(_("options '%s' and '%s' cannot be used together"), "--dir-diff", "--no-index");
- if (use_gui_tool + !!difftool_cmd + !!extcmd > 1)
- die(_("options '%s', '%s', and '%s' cannot be used together"), "--gui", "--tool", "--extcmd");
+ die_for_incompatible_opt3(use_gui_tool, "--gui",
+ !!difftool_cmd, "--tool",
+ !!extcmd, "--extcmd");
if (use_gui_tool)
setenv("GIT_MERGETOOL_GUI", "true", 1);