Fix syntax for pre-C23 standard compilers (#3736) (#3878)

Co-authored-by: Paulius Vitkus <[email protected]>

src/generated/stdout/quic_trace.c

@@ -102,7 +102,7 @@ void clog_stdout(struct clog_param * head, const char * const format, ...)
         }
     }
 
-JustPrint:
+JustPrint: ;
     // print the log line
     va_list ap;
     va_start(ap, format);