pgsql: Fix citext's upgrade-from-unpackaged script to set its collation

Fix citext's upgrade-from-unpackaged script to set its collation correctly.

Although there remains some debate about how CREATE TYPE should represent
the collation property, this doesn't really affect what we need to do in
citext's script, so go ahead and fix that.

Branch
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master

Details
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http://git.postgresql.org/pg/commitdiff/94be9e3f0ca9e7ced66168397eb586565bced9ca

Modified Files
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contrib/citext/citext--unpackaged--1.0.sql |   12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)