add postscript return value

git-svn-id: https://svn.code.sf.net/p/xcat/code/xcat-core/trunk@14396 8638fb3e-16cb-4fca-ae20-7b5d299a9bcd

xCAT/postscripts/addsiteyum

@@ -2,7 +2,7 @@
 cd `dirname $0`
 if [ ! -d repos/$OSVER/$ARCH ];  then
    logger -t xcat -p local4.err "addsiteyum: repos/$OSVER/$ARCH is not a directory"
-   exit;
+   exit -1;
 fi
 for i in repos/$OSVER/$ARCH/*
 do
@@ -13,3 +13,5 @@ do
    TARGFILE=`echo $TARGFILE|sed -e s/.tmpl$/.repo/`
    sed -e s!#INSTSERVER#!$MASTER! $i > /etc/yum.repos.d/$TARGFILE
 done
+
+exit 0