code review 882043: change channel read to clear

change channel read to clear
data just read from the channel.
this will make it easier to
recognize when to garbage
collect and finalize.

[ken3, 2010-04-06 23:58:50]

Hello rsc (cc: golang-dev@googlegroups.com),

I'd like you to review this change.

[ken3, 2010-04-06 23:58:54]

*** Submitted as http://code.google.com/p/go/source/detail?r=57f45887d8df ***

change channel read to clear
data just read from the channel.
this will make it easier to
recognize when to garbage
collect and finalize.

R=rsc
CC=golang-dev
http://codereview.appspot.com/882043

[rsc, 2010-04-07 00:06:36]

LGTM