provision_mac.sh: clang-format@11

Author: pestophagous

tools/ci/provision_mac.sh

@@ -8,7 +8,7 @@ sudo xcode-select -s "/Applications/Xcode_11.7.app"
 CUR_GIT_ROOT=$(git rev-parse --show-toplevel)
 
 brew install \
-     clang-format \
+     clang-format@11 \
      fontconfig \
      gdbm \
      glib \
@@ -27,6 +27,7 @@ brew install \
 
 pushd /usr/local/bin >& /dev/null
   sudo ln -sf clang-format clang-format-10
+  sudo ln -sf clang-format-11 clang-format-10
 popd >& /dev/null
 
 ${CUR_GIT_ROOT}/tools/ci/get_qt_libs_mac.sh