Log Message:
-----------
Avoid core dump on empty thesaurus dictionary.
Per report from Robert Gravsj.
Tags:
----
REL8_4_STABLE
Modified Files:
--------------
pgsql/src/backend/tsearch:
dict_thesaurus.c (r1.13 -> r1.13.2.1)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/tsearch/dict_thesaurus.c?r1=1.13&r2=1.13.2.1)