Add 'int' cast for getpid() because some Solaris releases return long

Bruce Momjian <bruce@momjian.us>

Commit: 5c267325ecd33ac76a674a789b0f0062eeeeb313
Author: Bruce Momjian <bruce@momjian.us>
Date: 2004-10-14T20:23:46Z
Releases: 8.0.0
Add 'int' cast for getpid() because some Solaris releases return long
for getpid().

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