Update some dead external links in the documentation

doc/src/sgml/sepgsql.sgml

@@ -762,17 +762,17 @@ ERROR:  SELinux: security policy violation
     </listitem>
    </varlistentry>
    <varlistentry>
-    <term><ulink url="http://docs.fedoraproject.org/selinux-user-guide/">Fedora SELinux User Guide</ulink></term>
+    <term><ulink url="https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/7/html/SELinux_Users_and_Administrators_Guide/">SELinux User's and Administrator's Guide</ulink></term>
     <listitem>
      <para>
       This document provides a wide spectrum of knowledge to administer
       <productname>SELinux</> on your systems.
-      It focuses primarily on Fedora, but is not limited to Fedora.
+      It focuses primarily on Red Hat operating systems, but is not limited to them.
      </para>
     </listitem>
    </varlistentry>
    <varlistentry>
-    <term><ulink url="http://docs.fedoraproject.org/selinux-faq">Fedora SELinux FAQ</ulink></term>
+    <term><ulink url="https://fedoraproject.org/wiki/SELinux_FAQ">Fedora SELinux FAQ</ulink></term>
     <listitem>
      <para>
       This document answers frequently asked questions about