mq: use the new `get_clone_path` to get the remote url

We stop using `ui.expandpath` to use a function with a more defined semantic. This will help us to make it an option to point [paths] entry to multiple destination.

Differential Revision: https://phab.mercurial-scm.org/D10402

hgext/mq.py

@@ -2863,11 +2863,12 b' def clone(ui, source, dest=None, **opts)'
     # main repo (destination and sources)
     if dest is None:
         dest = hg.defaultdest(source)
-    sr = hg.peer(ui, opts, ui.expandpath(source))
+    __, source_path, __ = urlutil.get_clone_path(ui, source)
+    sr = hg.peer(ui, opts, source_path)
 
     # patches repo (source only)
     if opts.get(b'patches'):
-        patchespath = ui.expandpath(opts.get(b'patches'))
+        __, patchespath, __ = urlutil.get_clone_path(ui, opts.get(b'patches'))
     else:
         patchespath = patchdir(sr)
     try: