Fix "amend last commit" can't get last commit message.
treed29a1b18249193138974a8984f5a9dc11943ac05
-rw-r--r-- 442 .gitignore
-rw-r--r-- 391 .gitmodules
drwxr-xr-x - Languages
-rw-r--r-- 3582 build.txt
drwxr-xr-x - common
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - ext
drwxr-xr-x - src
drwxr-xr-x - test