pgsql-server: Looks like s_lock_test needs <time.h> on some platforms.

Log Message:
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Looks like s_lock_test needs <time.h> on some platforms.

Modified Files:
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pgsql-server/src/backend/storage/lmgr:
s_lock.c (r1.27 -> r1.28)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/src/backend/storage/lmgr/s_lock.c.diff?r1=1.27&amp;r2=1.28)