Remove use of 'tie' in perl for copyright.pl; instead use normal file

Bruce Momjian <bruce@momjian.us>

Commit: 272c289a46d90d7d23947be9b6ffc5fb3ae8df83
Author: Bruce Momjian <bruce@momjian.us>
Date: 2011-08-19T21:43:32Z
Releases: 9.2.0
Remove use of 'tie' in perl for copyright.pl;  instead use normal file
open/close.

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src/tools/copyright.pl modified +7 −5