Fix submodule update Crash when repository have not submodule
treefa98276adc575399ce827fa479e6aea7c7f17f99
-rw-r--r-- 336 .gitignore
-rw-r--r-- 261 .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