notmuch: Document the new special-case syntax of "*".

[notmuch] / notmuch.1

diff --git a/notmuch.1 b/notmuch.1
index 0e6a2edcc2c76c17f796a4d6f375bb4411e4bfef..96fd2429d4945cf33416050731c796db704ab03b 100644 (file)
--- a/notmuch.1
+++ b/notmuch.1
@@ -387,6 +387,9 @@ which will match all messages that contain all of the given
 terms/phrases in the body, the subject, or any of the sender or
 recipient headers.
 
+As a special case, a search string consisting of exactly a single
+asterisk ("*") will match all messages.
+
 In addition to free text, the following prefixes can be used to force
 terms to match against specific portions of an email, (where
 <brackets> indicate user-supplied values):