set git default name and email

Author: detailyang

.pre-commit-config.yaml

@@ -0,0 +1,4 @@
+-   repo: /Users/detailyang/art/opensource/personal/pre-commit-shell
+    sha: 1731f9735972bb36e48bfbe20a067982de990275
+    hooks:
+    -   id: shell-lint

.travis.yml

@@ -5,6 +5,8 @@ before_install:
     - sudo apt-get update
     - sudo apt-get install shellcheck
     - sudo pip install pre-commit
+    - sudo git config --global user.email "detailyang@gmail.com"
+    - sudo git config --global user.name "detailyang"
 script:
     - export PATH=/home/travis/.cabal/bin:$PATH
     - make test