Always auto-gc after calling a fast-import transport

After importing anything with fast-import, we should always let the
garbage collector do its job, since the objects are written to disk
inefficiently.

This brings down an initial import of http://selenic.com/hg from about
230 megabytes to about 14.

In the future, we may want to make this configurable on a per-remote
basis, or maybe teach fast-import about it in the first place.

Signed-off-by: Johannes Schindelin <[email protected]>

Author: dscho

transport-helper.c

@@ -567,6 +567,7 @@ static int fetch_with_import(struct transport *transport,
 		}
 	}
 	strbuf_release(&buf);
+	run_auto_maintenance(transport->verbose < 0);
 	return 0;
 }