Added an approximate SBU time for the Bison test suite

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@8602 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter06/bison.xml

@@ -55,7 +55,7 @@
 
 <screen><userinput remap="make">make</userinput></screen>
 
-    <para>To test the results, issue:</para>
+    <para>To test the results (about 0.5 SBU), issue:</para>
 
 <screen><userinput remap="test">make check</userinput></screen>