updated explanation

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1132 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/file-exp.xml

@@ -1,7 +1,7 @@
 <sect2>
 <title>Command explanations</title>
 
-<para><userinput>sed '/#define __/a #include &lt;stdint.h&gt;' readelf.h.backup &gt; readelf.h :</userinput> This 
+<para><userinput>sed $'/#define __/a \\\n#include &lt;stdint.h&gt;' readelf.h.backup &gt; readelf.h :</userinput> This 
 sed fixes an error which occurs when compiling file-3.36 with
 automake-1.5 installed.</para>