cmd/guru: use byte (not rune) count in -modified archive
cmd/guru: use byte (not rune) count in -modified archive

Change-Id: I7fc575c8ec7a8170e64719419079d6742f47b119
Reviewed-on: https://go-review.googlesource.com/19744
Reviewed-by: Dominik Honnef <aeacd46bb4fd3f59504c7762d9af6bd04f20aa1f@honnef.co>
Reviewed-by: Michael Matloob <4562438b12c14e81a47550acde616ff328a909f8@golang.org>

emacsmirror/go-mode,dominikh/go-mode.el