Log Message:
-----------
Allow for X as well as x to be the prefix for hexadecimal character ref entity numbers,
as in HTML.
Modified Files:
--------------
pgsql/src/backend/tsearch:
wparser_def.c (r1.12 -> r1.13)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/tsearch/wparser_def.c?r1=1.12&r2=1.13)