Update contrib intarray to Jan 25 version.

Bruce Momjian <bruce@momjian.us>

Commit: 4bcb80a3e3112fb5969c3fbabaa5ecd3bd95f997
Author: Bruce Momjian <bruce@momjian.us>
Date: 2001-03-17T21:59:42Z
Releases: 7.1.1
Update contrib intarray to Jan 25 version.

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