runtime: print scavenger details when forced with debug.FreeOSMemory
Fixes issue 5900.

R=golang-dev, bradfitz
CC=golang-dev
https://codereview.appspot.com/12669043
misc/notepadplus: fix functionList regex issue

The receiver name is optional. when Method's receiver name messing,
the functionList regex can't match the Method,
e.g. `func (*T) ProtoMessage() {}`.

R=golang-dev, bradfitz
CC=golang-dev
https://codereview.appspot.com/12530044

Committer: Brad Fitzpatrick <bradfitz@golang.org>