doc: Fix markup typo
Branch
------
REL9_1_STABLE
Details
-------
http://git.postgresql.org/pg/commitdiff/bd0bfe1f8081a1e52d8cf1463c435d5f769c7339
Modified Files
--------------
doc/src/sgml/xml2.sgml | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)