Fixed #TSB-1234 test

ebpftracer/ebpf/l7/l7.c

@@ -307,7 +307,7 @@ void perf_event_batch_output(void *ctx,  struct l7_event *e) {
 //    for (int i = 0; i < e_length; i++) {   //IK:ERROR: IK: BPF stack limit of 512 bytes is exceeded. Please move large on stack variables into BPF per-cpu array map.
 //        *dst++ = *src++;
 //    }
-    int remaining_bytes = e_length
+    int remaining_bytes = e_length;
     while (remaining_bytes >= 16) {
         *(unsigned int *)dst = *(unsigned int *)src;
         dst += 16;