s/tidy/TIDY

tools/distrib/clang_tidy_code.sh

@@ -27,5 +27,5 @@ then
   # run clang-tidy against the checked out codebase
   docker run -e TEST=$TEST -e CHANGED_FILES="$CHANGED_FILES" -e CLANG_TIDY_ROOT="/local-code" --rm=true -v "${REPO_ROOT}":/local-code -t grpc_clang_tidy /clang_tidy_all_the_things.sh "$@"
 else
-  CLANG_tidy_ROOT="${REPO_ROOT}" tools/dockerfile/grpc_clang_tidy/clang_tidy_all_the_things.sh
+  CLANG_TIDY_ROOT="${REPO_ROOT}" tools/dockerfile/grpc_clang_tidy/clang_tidy_all_the_things.sh
 fi

tools/dockerfile/grpc_clang_tidy/clang_tidy_all_the_things.sh

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-set -e
+set -ex
 
 # clang format command
 CLANG_TIDY=${CLANG_TIDY:-clang-tidy-5.0}