Added fixes from the coverity report send in by Joachim Wieland <joe@mcknight.de>

Michael Meskes <meskes@postgresql.org>

Commit: 08f197391135951f7e60d65457103307dea89f0c
Author: Michael Meskes <meskes@postgresql.org>
Date: 2006-06-21T10:29:50Z
Releases: 8.1.5
Added fixes from the coverity report send in by Joachim Wieland <joe@mcknight.de>
Added missing error handling in a few functions in ecpglib.

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