Log Message:-----------Add documentation on the use of *printf() macros and libintl.
Backpatch to 8.1.X.
Modified Files:-------------- pgsql: configure (r1.465 -> r1.466) (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.diff?r1=1.465&r2=1.466) configure.in (r1.435 -> r1.436) (http://developer.postgresql.org/cvsweb.cgi/pgsql/configure.in.diff?r1=1.435&r2=1.436) pgsql/src/include: port.h (r1.86 -> r1.87) (http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/port.h.diff?r1=1.86&r2=1.87)