Silent stop for intel-microcode-netbsd

[Pierre Pronchery <khorben%defora.org@localhost>]

			Hi tech-pkg@,

intel-microcode-netbsd does not contain a daemon, it simply calls 
cpuctl(8) to upload the microcode to the CPU. However the RC script only 
handles the starting sequence. Therefore I would like to commit the 
change attached, which avoids an irrelevant message upon reboot, and 
avoids a meaningless error condition.

Before:
# /etc/rc.d/intel-microcode stop; echo $?
microcode not running?
1

After:
# /etc/rc.d/intel-microcode stop; echo $?
0

OK to commit?

Cheers & HTH,
--
khorben

? .Makefile.swp
Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/sysutils/intel-microcode-netbsd/Makefile,v
retrieving revision 1.41
diff -p -u -r1.41 Makefile
--- Makefile	20 Jul 2020 21:18:17 -0000	1.41
+++ Makefile	20 Jul 2020 21:19:08 -0000
@@ -3,6 +3,7 @@
 VERSION=	20200616
 DISTNAME=	microcode-${VERSION}
 PKGNAME=	intel-microcode-netbsd-${VERSION}
+PKGREVISION=	1
 CATEGORIES=	sysutils
 MASTER_SITES=	${MASTER_SITE_GITHUB:=intel/}
 GITHUB_PROJECT=	Intel-Linux-Processor-Microcode-Data-Files
Index: files/intel-microcode.sh
===================================================================
RCS file: /cvsroot/pkgsrc/sysutils/intel-microcode-netbsd/files/intel-microcode.sh,v
retrieving revision 1.1
diff -p -u -r1.1 intel-microcode.sh
--- files/intel-microcode.sh	29 Aug 2012 17:17:24 -0000	1.1
+++ files/intel-microcode.sh	20 Jul 2020 21:19:08 -0000
@@ -11,6 +11,7 @@ $_rc_subr_loaded . /etc/rc.subr
 name=microcode
 rcvar=$name
 start_cmd="microcode_start"
+stop_cmd=":"
 
 _microcode_baremetal()
 {