rc-cgroup.sh: remove shebang line

This is not a stand-alone script, so it does not need the shebang line.
This also means it is not necessary to run this through sed.

sh/.gitignore

@@ -4,6 +4,5 @@ openrc-run.sh
 cgroup-release-agent.sh
 init.sh
 init-early.sh
-rc-cgroup.sh
 migrate-to-run.sh
 binfmt.sh

sh/Makefile

@@ -2,7 +2,7 @@ DIR=	${LIBEXECDIR}/sh
 SRCS=	init.sh.in functions.sh.in gendepends.sh.in \
 	openrc-run.sh.in ${SRCS-${OS}}
 INC=	rc-mount.sh functions.sh rc-functions.sh runit.sh s6.sh \
-		start-stop-daemon.sh supervise-daemon.sh
+		start-stop-daemon.sh supervise-daemon.sh ${INC-${OS}}
 BIN=	gendepends.sh init.sh openrc-run.sh ${BIN-${OS}}
 
 INSTALLAFTER=	_installafter
@@ -14,9 +14,9 @@ SRCS-FreeBSD=
 BIN-FreeBSD=
 
 SRCS-Linux=	binfmt.sh.in cgroup-release-agent.sh.in init-early.sh.in \
-	migrate-to-run.sh.in rc-cgroup.sh.in
-BIN-Linux=	binfmt.sh cgroup-release-agent.sh init-early.sh migrate-to-run.sh \
-	rc-cgroup.sh
+	migrate-to-run.sh.in
+BIN-Linux=	binfmt.sh cgroup-release-agent.sh init-early.sh migrate-to-run.sh
+INC-Linux= rc-cgroup.sh
 
 SRCS-NetBSD=
 BIN-NetBSD=

sh/rc-cgroup.sh

@@ -1,4 +1,3 @@
-#!@SHELL@
 # Copyright (c) 2012-2015 The OpenRC Authors.
 # See the Authors file at the top-level directory of this distribution and
 # https://github.com/OpenRC/openrc/blob/master/AUTHORS