[PATCH v2] NEWS: Document "nmbug: Translate to Python"

[W. Trevor King]

For more details, see the commit message for 7f2cb3be (nmbug:
Translate to Python, 2014-10-03).  I realized while writing this that
the 7f2cb3be commit message has:

  * 'nmbug log' now execs 'git log', as there's no need to keep the
    Python process around once we've launched Git there.

But we dropped that exec in favor of the subprocess approach between
v3 and v4, I just forgot to update the commit message [1].

[1]: id:e630b6763e9d0771718afee41ea15b29bb4a1de8.1409935538.git.wking at tremily.us
     http://article.gmane.org/gmane.mail.notmuch.general/19007
---
Changes since v1 [1]:

* Trimmed down to a list of altered commands, and suggest people run
  'nmbug COMMAND --help' for details [2].

[1]: id:30987ac1951b6703839d1ec8546c91f2e94935ac.1412523971.git.wking at tremily.us
     http://thread.gmane.org/gmane.mail.notmuch.general/19225
[2]: id:87tx3fajqu.fsf at maritornes.cs.unb.ca

 NEWS | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/NEWS b/NEWS
index fa57e5d..2efb49d 100644
--- a/NEWS
+++ b/NEWS
@@ -22,6 +22,16 @@ Library changes
 Add return status to notmuch_database_close and
 notmuch_database_destroy
 
+nmbug
+-----
+
+The Perl script has been translated to Python; you'll need Python 2.7
+or anything from the 3.x line.  Most of the user-facing interface is
+the same, but `nmbug help` is not `nmbug --help`, and the following nmbug
+commands have slightly different interfaces: `archive`, `commit`,
+`fetch`, `log`, `pull`, `push`, and `status`.  For details on the
+new interface for a given command, run `nmbug COMMAND --help`.
+
 nmbug-status
 ------------
 
-- 
2.1.0.60.g85f0837