Add check_log.sh convenience script

tests/check_log.sh

@@ -0,0 +1,10 @@
+#!/bin/bash
+# Check test log
+cat /tmp/kernel-test.log 2>/dev/null || echo "No log file yet"
+echo "---"
+# Show if screen is still running
+if screen -list | grep -q kernel-test; then
+    echo "Screen kernel-test: RUNNING"
+else
+    echo "Screen kernel-test: DONE"
+fi