message: fix alloc memory size in swChannel_new
diff: @@ -36,11 +36,11 @@ swChannel* swChannel_new(size_t size, int maxlen, int flags)
  /**
  * overflow space
  */
  - mem = sw_shm_malloc(size + sizeof(swChannel) + maxlen);
  + mem = sw_shm_malloc(size + sizeof(swChannel) + maxlen + sizeof(swChannel_item));
  }
  else
  {
  - mem = sw_malloc(size + sizeof(swChannel) + maxlen);
  + mem = sw_malloc(size + sizeof(swChannel) + maxlen + sizeof(swChannel_item));
  }
  if (mem == NULL)
  