pgsql: Fix typo - Mailing list pgsql-committers

Fix typo

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/4911a274579329f50bf0fbfa735aba367aed89bd

Modified Files
--------------
doc/src/sgml/ref/pg_basebackup.sgml |    2 +-
1 files changed, 1 insertions(+), 1 deletions(-)