cleanup: make assert more readable

Author: vuvova

sql/log_event.cc

@@ -9692,8 +9692,8 @@ bool Table_map_log_event::write_data_body(IO_CACHE *file)
  DBUG_ASSERT(m_dbnam != NULL);
  DBUG_ASSERT(m_tblnam != NULL);
  /* We use only one byte per length for storage in event: */
- DBUG_ASSERT(m_dblen <= NAME_LEN);
- DBUG_ASSERT(m_tbllen <= NAME_LEN);
+ DBUG_ASSERT(m_dblen <= min(NAME_LEN, 255));
+ DBUG_ASSERT(m_tbllen <= min(NAME_LEN, 255));
 
  uchar const dbuf[]= { (uchar) m_dblen };
  uchar const tbuf[]= { (uchar) m_tbllen };