upgrade to precise to verify if build works. address self comments

.travis.yml

@@ -1,5 +1,5 @@
 sudo: required
-dist: trusty
+dist: precise 
 addons:
  apt:
  sources:

ci/travis_script_cpp.sh

@@ -9,7 +9,7 @@ pushd $CPP_BUILD_DIR
 make lint
 if [ $TRAVIS_OS_NAME == "linux" ]; then
  make check-format
- make clang-tidy
+ make check-clang-tidy
 fi
 
 ctest -L unittest

cpp/build-support/run-clang-format.sh

@@ -1,5 +1,17 @@
 #!/bin/bash
 #
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 # Runs clang format in the given directory
 # Arguments:
 # $1 - Path to the source tree

cpp/build-support/run-clang-tidy.sh

@@ -1,11 +1,24 @@
 #!/bin/bash
 #
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+#
 # Runs clang format in the given directory
 # Arguments:
 # $1 - Path to the clang tidy binary
 # $2 - Path to the compile_commands.json to use
 # $3 - Apply fixes (will raise an error if false and not there where changes)
-# $ARGN - Files to run clang format on
+# $ARGN - Files to run clang-tidy on
 #
 CLANG_TIDY=$1
 shift

cpp/src/arrow/util/logging.h

@@ -117,7 +117,7 @@ class CerrLog {
 // return so we create a new class to give it a hint.
 class FatalLog : public CerrLog {
  public:
- FatalLog(int /* severity */) // NOLINT(runtime/explicit)
+ FatalLog(int /* severity */) // NOLINT
  : CerrLog(ARROW_FATAL) {}
 
  [[noreturn]] ~FatalLog() {