submodule foreach: fix "<command> --quiet" not being respected

diff --git a/ci/install-dependencies.sh b/ci/install-dependencies.sh
index 608ff964dee0c15c2c2a97c15fc5a86d5138488a..d64667fcbfef80e4603d97f7825399dea5be0b6b 100755 (executable)
--- a/ci/install-dependencies.sh
+++ b/ci/install-dependencies.sh
@@ -34,7 +34,7 @@ linux-clang|linux-gcc)
        popd
        ;;
 osx-clang|osx-gcc)
-       brew update --quiet
+       brew update >/dev/null
        # Uncomment this if you want to run perf tests:
        # brew install gnu-time
        test -z "$BREW_INSTALL_PACKAGES" ||