Log Message:
Update ruby-mysql package to 2.7.3.

2006-12-20
    version 2.7.3
     - BUG: Mysql#query with block is stopped when last query failed.
2006-10-28
    version 2.7.2
     - BUG: Mysql::Stmt#result_metadata don't return nil. (Thanks to
        Hidetoshi)
     - BUG: Mysql#close check mysql_errno.
     - BUG: multistatement Mysql#query with block ignore error.
     - extconf.rb for Visual C++. (Thanks to Shugo Maeda)
     - support MySQL BIT type.
     - add Mysql::Field::TYPE_BIT, TYPE_NEWDECIMAL.