Fix pdf presentation issues and some misc issues

Change pdf generation to use 9 point fonts for monospace
sections of the book.  Otherwise texy overflows, especially
in Chapter 8, Stripping.

Fix a minor spacing issue in the stripping issue.

MAke a minor grammar fix in creatingfiles.xml.

chapter07/createfiles.xml

@@ -36,7 +36,7 @@
 
   <para>Historically, Linux maintains a list of the mounted file systems in the
   file <filename>/etc/mtab</filename>. Modern kernels maintain this list
-  internally and exposes it to the user via the <filename
+  internally and expose it to the user via the <filename
   class="directory">/proc</filename> filesystem. To satisfy utilities that
   expect the presence of <filename>/etc/mtab</filename>, create the following
   symbolic link:</para>

chapter08/stripping.xml

@@ -47,7 +47,7 @@
 <!-- also of interest are libgfortan, libgo, libgomp, and libobjc from GCC -->
 
 <!--<screen><userinput>save_lib="ld-2.25.so libc-2.25.so libpthread-2.25.so libthread_db-1.0.so"-->
-      <screen><userinput>save_usrlib="$(cd /usr/lib; ls ld-linux*)
+<screen><userinput>save_usrlib="$(cd /usr/lib; ls ld-linux*)
              libc.so.6
              libthread_db.so.1
              libquadmath.so.&libquadmath-version;

pdf-fixups.sh

@@ -13,6 +13,7 @@ LINE=$(( LINE - 1 ))
 
 # Not needed
 #sed -i -e "$LINE s/monospace/&\" font-size=\"9pt/" $FILE
+sed -i -e "s/monospace/&\" font-size=\"9pt/g" $FILE
 
 # Break a block of code at the right place
 sed -i -e 's@gcc --version@<fo:block page-break-before="always"></fo:block>&@' $FILE