Provide a fix for the semantic merge conflict between 'js/vsts-ci' and 'sg/travis-specific-cc'

There are merge conflicts that do not result in merge conflict markers: e.g. when one branch extends a function's signature, and another branch adds a caller.

In this instance, sg/travis-specific-cc wants to use gcc-8 in the osx-gcc job (which is already installed, but not linked, on Travis' macOS agents), and js/vsts-ci wants to run the tests on Azure Pipelines (where gcc-8 is not installed by default).

So this fixup is necessary to fix that conflict.

To see that this is necessary, I kicked off a public build and you can see the symptom of the problem here
[https://dev.azure.com/git/git/_build/results?buildId=318&view=logs&jobId=51041795-01c5-57f3-5561-107b6b9e51a6&taskId=fadc714a-a906-5cf2-cc7a-335e443ad2f8&lineStart=326&lineEnd=327&colStart=1&colEnd=71]
.

Johannes Schindelin (1):
fixup! Merge branch 'js/vsts-ci' into pu

 ci/lib.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

base-commit: c7baf85843ec1dc8272483baa2f84d0ec66ad882
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-113%2Fdscho%2Fosx-gcc%408-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-113/dscho/osx-gcc@8-v1
Pull-Request: https://github.com/gitgitgadget/git/pull/113

gitgitgadget

From: Johannes Schindelin <[email protected]>

The js/vsts-ci and sg/travis-specific-cc branches do not interact so well... While Travis has the Homebrew package gcc@8 installed in their Xcode 10.1 images, Azure Pipelines' agents do not.

---
 ci/lib.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

index 276b99693d..16f4ecbc67 100755
@@ -123,7 +123,7 @@ then
 		echo "$SYSTEM_TASKDEFINITIONSURI$SYSTEM_TEAMPROJECT/_build/results?buildId=$1"
 	}
 
-	BREW_INSTALL_PACKAGES=
+	BREW_INSTALL_PACKAGES=gcc@8
 	export GIT_PROVE_OPTS="--timer --jobs 10 --state=failed,slow,save"
 	export GIT_TEST_OPTS="--verbose-log -x --write-junit-xml"
 	export MAKEFLAGS="--jobs=10"

gitgitgadget

"Johannes Schindelin via GitGitGadget" <[email protected]>

Thanks; will use as a merge-fix/ recipe (assuming that sg/travis would graduate before vsts-ci).