Grammar fix

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@10861 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/glibc.xml

@@ -68,7 +68,7 @@
     Glibc autoconf tests would give false results and defeat the goal
     of achieving a clean build.</para>
 
-    <para>Fix is regression in the package that affects 32-bit architectures:</para>
+    <para>Fix a regression in the package that affects 32-bit architectures:</para>
 
 <screen><userinput remap="pre">sed -e '/ia32/s/^/1:/' \
     -e '/SSE2/s/^1://' \