Update test init string

Author: thespad

root/etc/cont-init.d/50-config

@@ -35,6 +35,11 @@ do
     fi
 done
 
+# Echo init finish for test runs
+if [ -n "${TEST_RUN}" ]; then
+    echo '[ls.io-init] done.'
+fi
+
 # Create API key if needed
 if [ ! -f "/config/BOOKSTACK_APP_KEY.txt" ];
     then