test: reindent, don't warn on PID 0

PID 0 for a collected task is not a bug, 1 or < 0 is a bug.

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

test/skel/bin/slay

@@ -2,7 +2,6 @@
 
 nm=$1
 
-# shellcheck disable=SC2046
 getpid()
 {
     initctl status "$1" |awk '/PID :/{ print $3; }'
@@ -38,11 +37,13 @@ while [ "$pid" -le 1 ]; do
 	    continue
 	fi
 
+	if [ $pid -ne 0 ]; then
 	    echo "Got a bad PID: $pid, aborting ..."
 	    ps
 	    sleep 1
 	    initctl status "$nm"
 	    ps
+	fi
 	exit 1
     fi
     break