golden: Rename 'build' target to 'skiacorrectness'.
golden: Rename 'build' target to 'skiacorrectness'.

$ cd ~/golib/src/skia.googlesource.com/buildbot.git/golden
$ make skiacorrectness
go install -v ./go/skiacorrectness
skia.googlesource.com/buildbot.git/golden/go/skiacorrectness

I think 'build' name is misleading here, for a target that installs a
binary called 'skiacorrectness'.

BUG=None
TEST=None
R=stephana@google.com

Review URL: https://codereview.chromium.org/628623003

Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot,Tiger66639/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,Tiger66639/skia-buildbot