scripts/mysql_install_db.sh:
  Portability fix (! is not portable)
sql/item_func.cc:
  Use my_strtoll10() instead of strtoull()
sql/repl_failsafe.cc:
  Use my_strtoll10() instead of strtoull()
sql/sql_analyse.cc:
  Use my_strtoll10() instead of strtoull()
sql/sql_yacc.yy:
  Use my_strtoll10() instead of strtoull()
strings/my_strtoll10.c:
  Fix compiler warnings