doc: fix typo in release notes
Backpatch through 8.4
Per suggestion by Amit Langote
Branch
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REL8_4_STABLE
Details
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http://git.postgresql.org/pg/commitdiff/8c64e933706cd1b3520fb71c4198710c1ac985da
Modified Files
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doc/src/sgml/release-8.4.sgml | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)