krb5 commit: Mention old preauth header file in docs

[Greg Hudson]

https://github.com/krb5/krb5/commit/13880cfe3ed4f2a8c6dc37a093ddc68165afd276
commit 13880cfe3ed4f2a8c6dc37a093ddc68165afd276
Author: Greg Hudson <ghudson at mit.edu>
Date:   Wed Jul 10 11:13:31 2013 -0400

    Mention old preauth header file in docs
    
    The previous commit updated the header file references for 1.12 in the
    clpreauth and kdcpreauth plugin interface documentation.  Add a
    parenthetical so that the reference is still useful for prior
    releases.

 doc/plugindev/clpreauth.rst  |    3 ++-
 doc/plugindev/kdcpreauth.rst |    3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/doc/plugindev/clpreauth.rst b/doc/plugindev/clpreauth.rst
index 5322fcd..c3e7298 100644
--- a/doc/plugindev/clpreauth.rst
+++ b/doc/plugindev/clpreauth.rst
@@ -8,7 +8,8 @@ preauthentication, and is described in :rfc:`4120` and :rfc:`6113`.
 The clpreauth interface allows the addition of client support for
 preauthentication mechanisms beyond those included in the core MIT
 krb5 code base.  For a detailed description of the clpreauth
-interface, see the header file ``<krb5/clpreauth_plugin.h>``.
+interface, see the header file ``<krb5/clpreauth_plugin.h>`` (or
+``<krb5/preauth_plugin.h>`` before release 1.12).
 
 A clpreauth module is generally responsible for:
 
diff --git a/doc/plugindev/kdcpreauth.rst b/doc/plugindev/kdcpreauth.rst
index 790b1f0..2655223 100644
--- a/doc/plugindev/kdcpreauth.rst
+++ b/doc/plugindev/kdcpreauth.rst
@@ -4,7 +4,8 @@ KDC preauthentication interface (kdcpreauth)
 The kdcpreauth interface allows the addition of KDC support for
 preauthentication mechanisms beyond those included in the core MIT
 krb5 code base.  For a detailed description of the kdcpreauth
-interface, see the header file ``<krb5/kdcpreauth_plugin.h>``.
+interface, see the header file ``<krb5/kdcpreauth_plugin.h>`` (or
+``<krb5/preauth_plugin.h>`` before release 1.12).
 
 A kdcpreauth module is generally responsible for: