git-update-server-info - Update auxiliary info file to help dumb servers
A dumb server that does not do on-the-fly pack generations must have some
auxiliary information files in $GIT_DIR/info and $GIT_OBJECT_DIRECTORY/info
directories to help clients discover what references and packs the server has.
This command generates such auxiliary files.
Currently the command updates the following files. Please see
gitrepository-layout(5) for description of what they are for: