diff -r 86bd794f6037 -r 6a7d34010f8f hgext/evolve.py
--- a/hgext/evolve.py	Fri Aug 08 18:06:08 2014 -0700
+++ b/hgext/evolve.py	Fri Aug 08 18:15:01 2014 -0700
@@ -2234,8 +2234,10 @@
         ui.status(message)
 
 def obsexcprg(ui, *args, **kwargs):
+    topic = 'obsmarkers exchange'
     if ui.configbool('experimental', 'verbose-obsolescence-exchange', False):
-        ui.progress('OBSEXC', *args, **kwargs)
+        topic = 'OBSEXC'
+    ui.progress(topic, *args, **kwargs)
 
 
 @command('debugobsoleterelevant',