# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1508847203 -7200
# Node ID f7f8fcbed02cbacd77d32db7157fe172b0ef49d7
# Parent  28e501581dc77f80a1dca1c7bc64df1d90fafefa
compat: simply the wrapping of '_destmergebranch'

All the version we support now use the same interface.

diff -r 28e501581dc7 -r f7f8fcbed02c hgext3rd/topic/destination.py
--- a/hgext3rd/topic/destination.py	Tue Oct 24 14:12:37 2017 +0200
+++ b/hgext3rd/topic/destination.py	Tue Oct 24 14:13:23 2017 +0200
@@ -53,12 +53,7 @@
             msg = _("topic '%s' has %d heads "
                     "- please merge with an explicit rev") % (top, len(heads))
             raise error.ManyMergeDestAbort(msg)
-    if len(getattr(orig, 'func_defaults', ())) == 3: # version hg-3.7
-        return orig(repo, action, sourceset, onheadcheck)
-    if 3 < len(getattr(orig, 'func_defaults', ())): # version hg-3.8 and above
-        return orig(repo, action, sourceset, onheadcheck, destspace=destspace)
-    else:
-        return orig(repo)
+    return orig(repo, action, sourceset, onheadcheck, destspace=destspace)
 
 def _destupdatetopic(repo, clean, check=None):
     """decide on an update destination from current topic"""