[PATCH] fixup for hex encoding desription in notmuch-tag.1

[david at tethera.net]

From: David Bremner <bremner at debian.org>

---
and here is the updated description.

 man/man1/notmuch-tag.1 |   19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/man/man1/notmuch-tag.1 b/man/man1/notmuch-tag.1
index ac2c8d7..a203f53 100644
--- a/man/man1/notmuch-tag.1
+++ b/man/man1/notmuch-tag.1
@@ -67,13 +67,22 @@ The input must consist of lines of the format:
 Each line is interpreted similarly to
 .B notmuch tag
 command line arguments. The delimiter is one or more spaces ' '. Any
-characters in <tag> and <search-term>
+characters in
+.RI < tag >
+and
+.RI < search-term >
 .B may
-be hex encoded with %NN where NN is the hexadecimal value of the
-character. Any ' ' and '%' characters in <tag> and <search-terms>
+be hex-encoded with %NN where NN is the hexadecimal value of the
+character (more precisely with %NN[%MM...] where NN, MM, etc... are
+the hexadecimal values of the bytes in the UTF-8 encoding of
+the character).  Any characters in <tag> and <search-term> not
+matching the regex
+.B [A-Za-z0-9@=.,_+-]
 .B must
-be hex encoded (using %20 and %25, respectively). Any characters that
-are not part of <tag> or <search-terms>
+be hex-encoded. Any characters that are not part of
+.RI  < tag >
+or
+.RI < search-term >
 .B must not
 be hex encoded.
 
-- 
1.7.10.4