fixed replication bug - flush_master_info() needs to be called every time we read an 
    event from master

this is will not be pushed yet


mysys/my_vsnprintf.c:
  make my_vsnprintf() work with oversized strings
  corrected Swedish "skipp" in the comments
sql/log.cc:
  wrong change - to be undone
sql/slave.cc:
  fixed bug - flush_master_info() needs to be called every time we read an 
  event from master