git/mergetools/smerge

diff_cmd () {
	"$merge_tool_path" mergetool "$LOCAL" "$REMOTE" -o "$MERGED"
}

merge_cmd () {
	if $base_present
	then
		"$merge_tool_path" mergetool "$BASE" "$LOCAL" "$REMOTE" -o "$MERGED"
	else
		"$merge_tool_path" mergetool "$LOCAL" "$REMOTE" -o "$MERGED"
	fi
}