tools/ci.sh: For code size build, fetch history of master branch only.
It's not necessary to fetch all branches.
@@ -42,7 +42,7 @@ function ci_code_size_build {
# starts off at either the ref/pull/N/merge FETCH_HEAD, or the current branch HEAD
git checkout -b pull_request # save the current location
git remote add upstream https://github.com/pfalcon/pycopy.git
- git fetch --depth=100 upstream
+ git fetch --depth=100 upstream master
# build reference, save to size0
# ignore any errors with this build, in case master is failing
git checkout `git merge-base --fork-point upstream/master pull_request`
