Typo fixes.

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7554 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

prologue/hostreqs.xml

@@ -73,10 +73,10 @@
 
   </itemizedlist>
 
-  <para>The reason for the kernel version requirement is that TLS support in
-  Binutils don't be built and the Native POSIX Threading Library (NPTL)
-  test suite will segfault if the host's kernel isn't a 2.6 kernel and has
-  not been compiled with GCC-3.0 or a later version.</para>
+  <para>The reason for the kernel version requirement is that thread-local
+  storage support in Binutils will not be built and the Native POSIX Threading
+  Library (NPTL) test suite will segfault if the host's kernel isn't a 2.6
+  kernel and has not been compiled with GCC-3.0 or a later version.</para>
 
   <para>In order to determine whether the host kernel meets the requirements
   outlined above, run the following command:</para>