Backpatch: Fix typo in update scripts for some contrib modules.

Fujii Masao <fujii@postgresql.org>

Commit: 7b6407d93d78948e44e81a0328b3b26608db2a00
Author: Fujii Masao <fujii@postgresql.org>
Committer: Andres Freund <andres@anarazel.de>
Date: 2014-08-25T16:30:46Z
Releases: 9.3.6
Backpatch: Fix typo in update scripts for some contrib modules.

Backpatch as discussed in 20140702192641.GD22738@awork2.anarazel.de
ff. as the error messages are user facing and possibly confusing.

Original commit: 6f9e39bc9993c18686f0950f9b9657c7c97c7450

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