Make the shell script more readable

tools/distrib/buildifier_format_code.sh

@@ -1,4 +1,4 @@
-#! /bin/bash -e
+#! /bin/bash
 # Copyright 2019 The gRPC Authors
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+set -e
+
 BUILDIFIER_VERSION="0.29.0"
 TEMP_BUILDIFIER_PATH="/tmp/buildifier"
 EXTRA_BUILDIFIER_FLAGS=$*

tools/run_tests/sanity/check_buildifier.sh

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-# The script to check if Bazel files needs to be formatted.
+# The script to check if Bazel files need to be formatted.
 
 GIT_ROOT="$(dirname "$0")/../../.."
 "$GIT_ROOT/tools/distrib/buildifier_format_code.sh" -mode=diff