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Description of problem:
Manual page of ssh_config contains:
     KexAlgorithms
             Specifies the available KEX (Key Exchange) algorithms.  Multiple algorithms must be comma-separated.  The default
             is “ecdh-sha2-nistp256”, “ecdh-sha2-nistp384”, “ecdh-sha2-nistp521”, “diffie-hellman-group-exchange-sha256”,
             “diffie-hellman-group-exchange-sha1”, “diffie-hellman-group14-sha1”, “diffie-hellman-group1-sha1”.

This is wrong as “ecdh-sha2-nistp256”, “ecdh-sha2-nistp384” and “ecdh-sha2-nistp521” are not implemented by RH's openssh.

Version-Release number of selected component (if applicable):
openssh-client-5.3p1-93.el6

How reproducible:
Always

Steps to Reproduce:
1. man ssh_config | grep ecdh-sha2-nistp256 || echo OK

Actual results:
             “ecdh-sha2-nistp256”, “ecdh-sha2-nistp384”, “ecdh-sha2-nistp521”,


Expected results:
OK

Additional info:

Created attachment 813770 [details]
fixed ssh_config.5

--- a/ssh_config.5
+++ b/ssh_config.5
@@ -633,9 +633,6 @@ and
 Specifies the available KEX (Key Exchange) algorithms.
 Multiple algorithms must be comma-separated.
 The default is
-.Dq ecdh-sha2-nistp256 ,
-.Dq ecdh-sha2-nistp384 ,
-.Dq ecdh-sha2-nistp521 ,
 .Dq diffie-hellman-group-exchange-sha256 , 
 .Dq diffie-hellman-group-exchange-sha1 ,
 .Dq diffie-hellman-group14-sha1 ,

This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2013-1695.html