release.2011-02-01.1

Re-issue to include go/ast fixes for godoc.

R=gri
CC=golang-dev
https://golang.org/cl/3989058

.hgtags

@@ -49,4 +49,3 @@ f7e692dc29b02fba8e5d59b967880a347b53607c release.2010-12-02
 72f9cb714f08b98c6a65ab2f2256fad6bb16967a release.2011-01-19
 d8ba80011a986470a54e5262ec125105aa4adc34 release.2011-01-20
 5b98b59dd37292e36afb24babb2d22758928e13d release.2011-02-01
-5b98b59dd37292e36afb24babb2d22758928e13d release