[install-guide/f22-branch] Better description for network --hostname= in Kickstart

[pbokoc]

commit ab9da9dce9be661d355afd01cee109be20df0870
Author: Petr Bokoc <pbokoc at redhat.com>
Date:   Fri Mar 13 16:01:21 2015 +0100

    Better description for network --hostname= in Kickstart

 en-US/Kickstart_Syntax_Reference.xml |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/en-US/Kickstart_Syntax_Reference.xml b/en-US/Kickstart_Syntax_Reference.xml
index cda2711..1a88f08 100644
--- a/en-US/Kickstart_Syntax_Reference.xml
+++ b/en-US/Kickstart_Syntax_Reference.xml
@@ -2260,7 +2260,7 @@
                     <term><option>--hostname=</option></term>
                     <listitem>
                         <para>
-                            Hostname for the installed system.
+                            Host name for the installed system. The host name can be either a <firstterm>fully-qualified domain name</firstterm> (FQDN) in the format <replaceable>hostname</replaceable>.<replaceable>domainname</replaceable>, or a short host name with no domain name. Many networks have a <firstterm>Dynamic Host Configuration Protocol</firstterm> (<systemitem class="protocol">DHCP</systemitem>) service that automatically supplies connected systems with a domain name; to allow the <systemitem class="protocol">DHCP</systemitem> service to assign the domain name to this machine, only specify the short host name.
                         </para>
                     </listitem>
                 </varlistentry>