update libssh2_hostkey_hash(3) man page

[upstream commit fe8f3deb]

libssh2-1.4.2-fips.patch

@@ -302,3 +302,33 @@ index 4835ab6..6f21a1a 100644
 -- 
 1.7.1
 
+From fe8f3deb480d1fcef0d720e6b9acabbd640fe7c3 Mon Sep 17 00:00:00 2001
+From: Kamil Dudka <kdudka@redhat.com>
+Date: Thu, 1 Nov 2012 14:57:06 +0100
+Subject: [PATCH] libssh2_hostkey_hash.3: update the description of return value
+
+The function returns NULL also if the hash algorithm is not available.
+---
+ docs/libssh2_hostkey_hash.3 |    7 ++++---
+ 1 files changed, 4 insertions(+), 3 deletions(-)
+
+diff --git a/docs/libssh2_hostkey_hash.3 b/docs/libssh2_hostkey_hash.3
+index f78831c..c2f1644 100644
+--- a/docs/libssh2_hostkey_hash.3
++++ b/docs/libssh2_hostkey_hash.3
+@@ -18,8 +18,9 @@ Returns the computed digest of the remote system's hostkey. The length of
+ the returned string is hash_type specific (e.g. 16 bytes for MD5, 
+ 20 bytes for SHA1).
+ .SH RETURN VALUE
+-Computed hostkey hash value. or NULL if the session has not yet been started 
+-up. (The hash consists of raw binary bytes, not hex digits, so is not 
+-directly printable.)
++Computed hostkey hash value, or NULL if the information is not available
++(either the session has not yet been started up, or the requested hash
++algorithm was not available). The hash consists of raw binary bytes, not hex
++digits, so it is not directly printable.
+ .SH SEE ALSO
+ .BR libssh2_session_init_ex(3)
+-- 
+1.7.1
+

libssh2.spec

@@ -138,6 +138,7 @@ rm -rf %{buildroot}
 %changelog
 * Wed Nov 07 2012 Kamil Dudka <kdudka@redhat.com> 1.4.2-4
 - examples: use stderr for messages, stdout for data (upstream commit b31e35ab)
+- update libssh2_hostkey_hash(3) man page (upstream commit fe8f3deb)
 
 * Wed Sep 26 2012 Kamil Dudka <kdudka@redhat.com> 1.4.2-3
 - fix basic functionality of libssh2 in FIPS mode