Upgrade tgit to 1.7.2.3
tree06aeb4594a4f2bdc064c7a0c1ad80463c7d67d63
-rw-r--r-- 388 .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