[PATCH] man: show: update man page for entire-thread and json.

[Mark Walters <markwalters1009@gmail.com>]

Previously in notmuch show --format=json implied --entire-thread. This
is still the default but it is now possible to disable this. Update
the manpage to reflect this.
---

I didn't update the manpage in the recent patch series. This corrects
that omission. (Less cumbersome wording gratefully received)

Best wishes
                                                                                                                             
Mark    man/man1/notmuch-show.1 |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/man/man1/notmuch-show.1 b/man/man1/notmuch-show.1
index b51a54c..5fa590e 100644
--- a/man/man1/notmuch-show.1
+++ b/man/man1/notmuch-show.1
@@ -26,9 +26,9 @@ include
 .TP 4
 .B \-\-entire\-thread
 
-By default only those messages that match the search terms will be
-displayed. With this option, all messages in the same thread as any
-matched message will be displayed.
+By default (except when format=json) only those messages that match
+the search terms will be displayed. With this option, all messages in
+the same thread as any matched message will be displayed.
 .RE
 
 .RS 4
@@ -55,11 +55,13 @@ be nested.
 The output is formatted with Javascript Object Notation (JSON). This
 format is more robust than the text format for automated
 processing. The nested structure of multipart MIME messages is
-reflected in nested JSON output. JSON output always includes all
-messages in a matching thread; in effect
+reflected in nested JSON output. By default JSON output includes all
+messages in a matching thread; that is, by default,
 .B \-\-format=json
-implies
-.B \-\-entire\-thread
+sets
+.B "\-\-entire\-thread"
+The caller can disable this behaviour by setting
+.B \-\-entire\-thread=false
 
 .RE
 .RS 4
-- 
1.7.9.1