Matthew Flatt 785cd52135 fix `make-limited-input-port' limit tracking for committed peeks ... and make the port thread-safe original commit: 7089a17ba2931b1be04c9eec68c3bef7967d0ca7		2011-06-17 11:14:50 -06:00
collects	fix `make-limited-input-port' limit tracking for committed peeks	2011-06-17 11:14:50 -06:00