fixup! Configure appveyor build to use python

diff --git a/appveyor.yml b/appveyor.yml
index bbf24159ae4425f8f92031e70b1324219a1b22a4..67de36934e96b297e2b24c25a2e04f87b3955b30 100644 (file)
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -7,7 +7,7 @@ environment:
 
 clone_script:
   - bash -lc "echo $APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME - $APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH"
-  - bash -lc "git clone -q --branch=${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH:APPVEYOR_REPO_BRANCH} https://github.com/${APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME:$APPVEYOR_REPO_NAME}.git $APPVEYOR_BUILD_FOLDER"
+  - bash -lc "git clone -q --branch=${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH:-$APPVEYOR_REPO_BRANCH} https://github.com/${APPVEYOR_PULL_REQUEST_HEAD_REPO_NAME:-$APPVEYOR_REPO_NAME}.git $APPVEYOR_BUILD_FOLDER"
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER && git checkout -qf ${APPVEYOR_PULL_REQUEST_HEAD_REPO_BRANCH:APPVEYOR_REPO_BRANCH}"
   - bash -lc "cd $APPVEYOR_BUILD_FOLDER && git submodule update --init --recursive"