'prune'::
-Deletes all stale remote-tracking branches under <name>.
-These stale branches have already been removed from the remote repository
-referenced by <name>, but are still locally available in
-"remotes/<name>".
+Deletes stale references associated with <name>. By default, stale
+remote-tracking branches under <name> are deleted, but depending on
+global configuration and the configuration of the remote we might even
+prune local tags that haven't been pushed there. Equivalent to `git
+fetch --prune <name>`, except that no new references will be fetched.
++
+See the PRUNING section of linkgit:git-fetch[1] for what it'll prune
+depending on various configuration.
+
With `--dry-run` option, report what branches will be pruned, but do not
actually prune them.
'update'::
-Fetch updates for a named set of remotes in the repository as defined by
-remotes.<group>. If a named group is not specified on the command line,
+Fetch updates for remotes or remote groups in the repository as defined by
+remotes.<group>. If neither group nor remote is specified on the command line,
the configuration parameter remotes.default will be used; if
remotes.default is not defined, all remotes which do not have the
configuration parameter remote.<name>.skipDefaultUpdate set to true will
be updated. (See linkgit:git-config[1]).
+
-With `--prune` option, prune all the remotes that are updated.
+With `--prune` option, run pruning against all the remotes that are updated.
DISCUSSION
`remote.origin.fetch` configuration variables. (See
linkgit:git-config[1]).
-Examples
+EXAMPLES
--------
* Add a new remote, fetch, and check out a branch from it