chore: install clang-format in github action

Author: SSARCandy

.github/workflows/c-cpp.yml

@@ -15,7 +15,7 @@ jobs:
     steps:
     - uses: actions/checkout@v2
     - name: apt
-      run: sudo apt-get install g++ cmake lcov libboost-all-dev
+      run: sudo apt-get install g++ cmake lcov libboost-all-dev clang-format
     - name: submodule
       run: git submodule update --init --recursive
     - name: lint

.travis.yml

@@ -9,7 +9,7 @@ addons:
     packages: clang-format colordiff lcov libboost-all-dev
 
 script:
-  - ./linter.sh
+  - bash linter.sh
   - ./build.sh -t
   - ./build.sh -c