Thread: pgsql-server: Remove xstrdup and friends who were only called once.

Log Message:
-----------
Remove xstrdup and friends who were only called once.  Replace with
#ifdef calls.

Modified Files:
--------------
    pgsql-server/src/port:
        dirmod.c (r1.15 -> r1.16)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/port/dirmod.c.diff?r1=1.15&r2=1.16)