checkfs: fix return code check after remounting root fs read/only (Davide Madrisan)

etc/rc.d/init.d/checkfs

@@ -15,10 +15,9 @@ fi
 
 echo -n "Mounting root file system in read-only mode: "
 mount -n -o remount,ro /
-evaluate_retval
-echo
+retval=$?
 
-if [ $? != 0 ]; then
+if [ $retval != 0 ]; then
    $FAILURE
    echo
    echo "Cannot check root file system because it could not"
@@ -33,6 +32,9 @@ if [ $? != 0 ]; then
    $rc_base/init.d/halt
 fi
 
+echo_success
+echo
+
 if [ -f /forcefsck ]; then
    echo "/forcefsck exists, forcing file system check"
    options="-f"