from mysql-next-mr-bugfixing to mysql-trunk-bugfixing.

Original revision:
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revision-id: zhenxing.he@sun.com-20091127084945-wng7gakygduv3q8k
committer: He Zhenxing <zhenxing.he@sun.com>
branch nick: 5.1-rep-semisync
timestamp: Fri 2009-11-27 16:49:45 +0800
message:
  Bug#48351 Inconsistent library names for semisync plugin
  
  The semisync plugin library names on Unix like systems were prefixed with
  'lib', which did not follow the conventions.
  
  Fix the problem by removing the 'lib' prefix on Unix systems.
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