BUG/MINOR: flt-trace: fix an infinite loop when random-parsing is set

The issue is introduced with the commit c41d8bd65 ("CLEANUP: flt-trace:
Remove unused random-parsing option").

This must be backported everywhere the above commit is.
diff --git a/src/flt_trace.c b/src/flt_trace.c
index 424cd00..b3efea6 100644
--- a/src/flt_trace.c
+++ b/src/flt_trace.c
@@ -642,7 +642,7 @@
 			else if (strcmp(args[pos], "quiet") == 0)
 				conf->flags |= TRACE_F_QUIET;
 			else if (strcmp(args[pos], "random-parsing") == 0)
-				continue; // ignore
+				; // ignore
 			else if (strcmp(args[pos], "random-forwarding") == 0)
 				conf->flags |= TRACE_F_RAND_FWD;
 			else if (strcmp(args[pos], "hexdump") == 0)