Log Message:-----------Update date/time comments.
Modified Files:-------------- pgsql/src/include/utils: timestamp.h (r1.52 -> r1.53) (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/timestamp.h.diff?r1=1.52&r2=1.53) pgsql/src/interfaces/ecpg/pgtypeslib: dt.h (r1.29 -> r1.30) (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/interfaces/ecpg/pgtypeslib/dt.h.diff?r1=1.29&r2=1.30)