crecord: fix revert -ir '.^' crash caused by 3649c3f2cd

crecord: fix revert -ir '.^' crash caused by 3649c3f2cd

3649c3f2cd (revert: do not reverse hunks in interactive when REV is not
parent (issue5096)) changed the record "operation" for the text version but
missed the curses version. Without this patch, running
`hg revert -ir '.^' --config ui.interface=curses` would crash with:

  ProgrammingError: unexpected operation: apply

Differential Revision: https://phab.mercurial-scm.org/D1381

--- a/mercurial/crecord.py	Thu Nov 16 17:11:14 2017 -0800
+++ b/mercurial/crecord.py	Mon Nov 13 18:22:25 2017 -0800
@@ -555,7 +555,7 @@
     return chunkselector.opts
 
 _headermessages = { # {operation: text}
-    'revert': _('Select hunks to revert'),
+    'apply': _('Select hunks to apply'),
     'discard': _('Select hunks to discard'),
     None: _('Select hunks to record'),
 }