setlocalversion: Never append a "+" to localversion

if test "$CONFIG_LOCALVERSION_AUTO" = "y"; then

	# full scm version string

	res="$res$(scm_version)"

else

	# append a plus sign if the repository is not in a clean

	# annotated or signed tagged state (as git describe only

	# looks at signed or annotated tags - git tag -a/-s) and

	# LOCALVERSION= is not specified

	if test "${LOCALVERSION+set}" != "set"; then

		scm=$(scm_version --short)

		res="$res${scm:++}"

	fi

fi

echo "$res"