convert: process missing branches in sorted order

hgext/convert/hg.py

@@ -110,7 +110,7 b' class mercurial_sink(converter_sink):'
 
         if missings:
             self.after()
-            for pbranch, heads in missings.iteritems():
+            for pbranch, heads in sorted(missings.iteritems()):
                 pbranchpath = os.path.join(self.path, pbranch)
                 prepo = hg.peer(self.ui, {}, pbranchpath)
                 self.ui.note(_('pulling from %s into %s\n') % (pbranch, branch))

tests/test-convert-clonebranches.t

@@ -82,7 +82,7 b' incremental conversion'
   pulling from branch0 into branch2
   4 changesets found
   0 c3
-  pulling from branch2 into branch3
+  pulling from branch1 into branch3
   5 changesets found
-  pulling from branch1 into branch3
+  pulling from branch2 into branch3
   1 changesets found