largefiles: opts appears to already be bytes in this instance

test-largefiles.t now passes.

Differential Revision: https://phab.mercurial-scm.org/D3364

contrib/python3-whitelist

@@ -211,6 +211,7 b' test-largefiles-cache.t'
 test-largefiles-misc.t
 test-largefiles-small-disk.t
 test-largefiles-update.t
+test-largefiles.t
 test-lfs-largefiles.t
 test-linerange.py
 test-locate.t

hgext/largefiles/overrides.py

@@ -897,7 +897,7 b' def hgclone(orig, ui, opts, *args, **kwa'
         # Caching is implicitly limited to 'rev' option, since the dest repo was
         # truncated at that point.  The user may expect a download count with
         # this option, so attempt whether or not this is a largefile repo.
-        if opts.get(r'all_largefiles'):
+        if opts.get('all_largefiles'):
             success, missing = lfcommands.downloadlfiles(ui, repo, None)
 
             if missing != 0: