Revert minimum glibc version to previous value

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11520 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter02/hostreqs.xml

@@ -67,7 +67,7 @@
     </listitem>
 
     <listitem>
-      <para><emphasis role="strong">Glibc-2.26</emphasis> (Versions
+      <para><emphasis role="strong">Glibc-2.11</emphasis> (Versions
       greater than &glibc-version; are not recommended as they have
       not been tested)</para>
     </listitem>