Log Message:
-----------
Fix missing "not", per Frank Millman (bug #4212).
Modified Files:
--------------
pgsql/doc/src/sgml:
installation.sgml (r1.309 -> r1.310)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/installation.sgml?r1=1.309&r2=1.310)