Hello rsc@golang.org (cc: golang-dev@googlegroups.com), I'd like you to review this change to https://code.google.com/p/go/
LGTM
*** Submitted as https://code.google.com/p/go/source/detail?r=68ae719b2335 *** cmd/5l: support -Z (zero stack frame at function entry) also added appropriate docs to cmd/ld/doc.go (largely copied from Russ's CL 6938073). R=rsc CC=golang-dev https://codereview.appspot.com/7004049