dbug naming conventions
dbug/user.r
    unification, documenting DBUG_ABORT()
include/my_dbug.h
    DBUG_ABORT()
sql/mysqld.cc
    remove redundant option (--enable-debug and --disable-debug should be
    used instead)


dbug/dbug.c:
  dbug naming conventions
dbug/user.r:
  unification, documenting DBUG_ABORT()
include/my_dbug.h:
  DBUG_ABORT()
sql/mysqld.cc:
  remove redundant option (--enable-debug and --disable-debug should be
  used instead)