submission: sshd_config documentation clarification

[J's Mail]

The man 5 sshd_config fails to clarify what happens when multiple
qualifying Match blocks specify the same configuration option.  This
patch updates the man page to do so.

I tested the behaviour and described what was empirically observed.  I
can only assume this is the desired behaviour.

This is a first attempt.  If format or something else is off, let me
know; I'll be happy to adjust.

----
Match
Introduces a conditional block.  If all of the criteria on the Match
line are satisfied, the keywords on the following lines override those
set in the global section of the config file, until either another
Match line or the end of the file. If multiple Match blocks are
satisfied, and a keyword is specified multiple times, the first Match
block instance of the keyword is honored.
-------------- next part --------------
--- sshd_config.5	2013-02-11 20:02:08.000000000 -0800
+++ sshd_config.5.jlm	2013-12-12 08:13:42.000000000 -0800
@@ -731,7 +731,12 @@
 line are satisfied, the keywords on the following lines override those
 set in the global section of the config file, until either another
 .Cm Match
-line or the end of the file.
+line or the end of the file. If multiple
+.Cm Match
+blocks are satisfied, and a keyword is specified multiple times, the
+first
+.Cm Match
+block instance of the keyword is honored.
 .Pp
 The arguments to
 .Cm Match