fixup for "fix mscpool cleanup (fixes LCLS tests)"

For the VTY "Unknown Command" code path, we must actually call 'repeat', to
avoid racey VTY behavior from cruft stuck in the VTY pipe.

The missing 'repeat' caused massive random fallout in the 'latest' builds,
which often hits the 'Unknown Command' code path; fixed by this patch.

Change-Id: Ibd5adb359b3fb302e2c70700d911878aef605ff3
diff --git a/library/Osmocom_VTY_Functions.ttcn b/library/Osmocom_VTY_Functions.ttcn
index 4cf37c4..cb3434e 100644
--- a/library/Osmocom_VTY_Functions.ttcn
+++ b/library/Osmocom_VTY_Functions.ttcn
@@ -71,6 +71,8 @@
 					testcase.stop(fail, "VTY: Unknown Command");
 				} else {
 					log("VTY: Unknown Command (ignored)");
+					buf := buf & rx;
+					repeat;
 				}
 				};
 			[] pt.receive(charstring:?) -> value rx { buf := buf & rx; repeat };