Log Message:
-----------
Fix minor memory leak in Win32 SID handling functions. Not a big issue
since it's only called during process startup, thus no backpatch.
Found by TAKATSUKA Haruka, patch by Magnus Hagander and
Andrew Chernow
Modified Files:
--------------
pgsql/src/port:
exec.c (r1.63 -> r1.64)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/port/exec.c?r1=1.63&r2=1.64)