Fix Issue #419: wrong error message for empty commit
treec8f0b890019bb989919fe27d6280e332ce283e03
-rw-r--r-- 388 .gitignore
-rw-r--r-- 391 .gitmodules
drwxr-xr-x - Languages
-rw-r--r-- 3557 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