doc: update note about GCC 4.8.2 in gccgo instructions

R=golang-dev, minux.ma
CC=golang-dev
https://golang.org/cl/22510043

doc/gccgo_install.html

@@ -38,8 +38,8 @@ The GCC 4.7.1 release and all later 4.7 releases include a complete
 
 <p>
 Due to timing, the GCC 4.8.0 and 4.8.1 releases are close to but not
-identical to Go 1.1.  The GCC 4.8.2 release is expected to include a
-complete Go 1.1.1 implementation.
+identical to Go 1.1.  The GCC 4.8.2 release includes a complete Go
+1.1.2 implementation.
 </p>
 
 <h2 id="Source_code">Source code</h2>