update hostname version to 3.21

hostname-rh.patch

@@ -22,7 +22,7 @@ diff -up hostname/hostname.1.rh hostname/hostname.1
 --- hostname/hostname.1.rh	2013-11-03 15:24:23.000000000 +0100
 +++ hostname/hostname.1	2013-11-04 10:12:59.670379153 +0100
 @@ -80,6 +80,28 @@ complete FQDN of the system is returned
- .B "THE FQDN"
+ .B THE FQDN
  below).
  
 +.LP
@@ -37,7 +37,7 @@ diff -up hostname/hostname.1.rh hostname/hostname.1
 +and
 +.BR gethostbyname(3)
 +is that
-+.BR gethostbyname(3)
++.BR gethostbyname(5)
 +is network aware, so it consults 
 +.IR /etc/nsswitch.conf
 +and
@@ -51,7 +51,7 @@ diff -up hostname/hostname.1.rh hostname/hostname.1
  When called with one argument or with the
  .B \-\-file
 @@ -105,8 +127,7 @@ command (see
- .B "THE FQDN"
+ .B THE FQDN
  below).
  .LP
 -The host name is usually set once at system startup in

hostname.spec

@@ -1,7 +1,7 @@
 Summary: Utility to set/show the host name or domain name
 Name:    hostname
-Version: 3.20
-Release: 7
+Version: 3.21
+Release: 1
 License: GPLv2+
 URL:     http://packages.qa.debian.org/h/hostname.html
 Source0: http://ftp.de.debian.org/debian/pool/main/h/hostname/hostname_%{version}.tar.gz
@@ -48,5 +48,11 @@ fi
 %{_libexecdir}/%{name}/*
 
 %changelog
+* Fri Jul 24 2020 gaihuiying <gaihuiying1@huawei.com> - 3.21-1
+- Type:requirement
+- ID:NA
+- SUG:NA
+- DESC:update hostname version to 3.21
+
 * Fri Sep 20 2019 Alex Chao <zhaolei746@huawei.com> - 3.20-7
 - Package init