Instead of naming each ref to push, specifies that all
refs under `$GIT_DIR/refs/heads/` be pushed.
+\--mirror::
+ Instead of naming each ref to push, specifies that all
+ refs under `$GIT_DIR/refs/heads/` and `$GIT_DIR/refs/tags/`
+ be mirrored to the remote repository. Newly created local
+ refs will be pushed to the remote end, locally updated refs
+ will be force updated on the remote end, and deleted refs
+ will be removed from the remote end.
+
\--dry-run::
Do everything except actually send the updates.