Log Message:
-----------
Add comment about pthread_self() cast.
Modified Files:
--------------
pgsql/src/interfaces/libpq:
fe-secure.c (r1.70 -> r1.71)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/libpq/fe-secure.c.diff?r1=1.70&r2=1.71)