Fix travis.yml syntax issue

.travis.yml

@@ -13,7 +13,7 @@ before_install:
   pip install --user sphinx
 script:
 - git tag tmp-travis-build
-- git log --pretty="commit %h (parents: %p): %s" -1
+- sh travis/git-info.sh
 - python travis/pr-check-base.py
 - python travis/lint.py
 - python travis/script-in-readme.py

travis/git-info.sh

@@ -0,0 +1,2 @@
+#!/bin/sh
+git log --pretty="commit %h (parents: %p): %s" -1