fixed #127877, never output " in element content this changes the

* entities.c: fixed #127877, never output " in element content
* result/isolat3 result/slashdot16.xml result/noent/isolat3
  result/noent/slashdot16.xml result/valid/REC-xml-19980210.xml
  result/valid/index.xml result/valid/xlink.xml: this changes the
  output of a few tests
Daniel
diff --git a/result/isolat3 b/result/isolat3
index 9d5bb5b..1abf7b4 100644
--- a/result/isolat3
+++ b/result/isolat3
@@ -4,7 +4,7 @@
 <!ENTITY   rights "All rights reserved" >
 <!ENTITY   book   "La Peste: Albert Camus, 
 &#xA9; 1947 %pub;. &rights;" >]]></eg>
-then the replacement text for the entity &quot;<code>book</code>&quot; is:
+then the replacement text for the entity "<code>book</code>" is:
 <eg>La Peste: Albert Camus, 
 © 1947 Éditions Gallimard. &amp;rights;</eg>
 </rec>