dont use a bashism way to check the $VERSION variable.

The rc/init.d scripts, and safe_asterisk work on normal sh now again.
Tested on:
OpenBSD 4.2 (me)
Debian etch (me)
Ubuntu Hardy (me and loloski)
FC9 (loloski)

(closes issue #12687)
Reported by: loloski
Patches:
      20080529-12687-safe_asterisk-fixversion.diff.txt uploaded by mvanbaak (license 7)
	  Tested by: loloski, mvanbaak


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@119301 65c4cc65-6c06-0410-ace0-fbb531ad65f3

contrib/init.d/rc.mandrake.asterisk

@@ -122,7 +122,7 @@ case "$1" in
 		# Check if Asterisk is already running.  If it is, then bug out, because
 		# starting Asterisk when Asterisk is already running is very bad.
 		VERSION=`${ASTSBINDIR}/asterisk -rx 'core show version'`
-		if [ "${VERSION:0:8}" = "Asterisk" ]; then # otherwise "Unable t"
+		if [ "`echo $VERSION | cut -c 1-8`" = "Asterisk" ]; then
 			echo "Asterisk is already running.  $0 will exit now."
 			exit 1
 		fi