TortoiseGitBlame: fix possible crash on invalid revision
tree0dcbbb8b6687cc8ac3e042b6e29edf1b2b9b6d46
-rw-r--r-- 367 .gitignore
-rw-r--r-- 543 .gitmodules
drwxr-xr-x - Languages
-rw-r--r-- 3425 build.txt
drwxr-xr-x - common
drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - ext
-rw-r--r-- 145 release.txt
drwxr-xr-x - src
drwxr-xr-x - test