templates: add "changeset.obsolete" label in command line style

Following respective change in cmdutil.changeset_printer.

mercurial/templates/map-cmdline.default

@@ -30,7 +30,8 b" lfile_copies_switch = '{if(file_copies_s"
 # General templates
 _trouble_label = 'trouble.{trouble}'
 _troubles_labels = '{if(troubles, "changeset.troubled {troubles%_trouble_label}")}'
-_cset_labels = '{separate(" ", "log.changeset", "changeset.{phase}", "{_troubles_labels}")}'
+_obsolete_label = '{if(obsolete, "changeset.obsolete")}'
+_cset_labels = '{separate(" ", "log.changeset", "changeset.{phase}", "{_obsolete_label}", "{_troubles_labels}")}'
 cset = '{label("{_cset_labels}",
                "changeset:   {rev}:{node|short}")}\n'
 

tests/test-obsolete.t

@@ -830,6 +830,13 b' test the default cmdline template'
   trouble:     unstable, bumped
   summary:     add babar
   
+  $ hg log -T default -r 'obsolete()'
+  changeset:   6:3de5eca88c00
+  parent:      3:6f9641995072
+  user:        test
+  date:        Thu Jan 01 00:00:00 1970 +0000
+  summary:     add obsolete_e
+  
 
 test summary output