notmuch.1: Document the new --entire-thread option to "notmuch show".

This was added to "notmuch help" earlier, but not to the man page.
Add it there, and use consistent wording in both places.

1 files changed, 4 insertions, 3 deletions

diff --git a/notmuch.c b/notmuch.c
index 06b55f9..2ac8a59 100644
--- a/notmuch.c
+++ b/notmuch.c
@@ -181,9 +181,10 @@ command_t commands[] = {
       "\n"
       "\t\t--entire-thread\n"
       "\n"
-      "\t\t\tBy default only messages strictly matching the\n"
-      "\t\t\tsearch expression will be displayed.  With this\n"
-      "\t\t\toption all messages in matching threads are shown.\n"
+      "\t\t\tBy default only those messages that match the\n"
+      "\t\t\tsearch terms will be displayed. With this option,\n"
+      "\t\t\tall messages in the same thread as any matched\n"
+      "\t\t\tmessage will be displayed.\n"
       "\n"
       "\t\tThe output format is plain-text, with all text-content\n"
       "\t\tMIME parts decoded. Various components in the output,\n"