Fix grammatical mistake introduced by previous commit

Alvaro Herrera <alvherre@alvh.no-ip.org>

Commit: a2b354afb603ad9b1e527ed6e2f7180271f97fa2
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2011-06-14T18:07:17Z
Releases: 9.0.5
Fix grammatical mistake introduced by previous commit

Per note from Tom

Files

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doc/src/sgml/ddl.sgml modified +1 −1