code cleanup, especially the function comments. fixed a small bug when

* DOCBparser.c HTMLparser.c c14n.c debugXML.c encoding.c hash.c
  nanoftp.c nanohttp.c parser.c parserInternals.c testC14N.c
  testDocbook.c threads.c tree.c valid.c xmlIO.c xmllint.c xmlmemory.c
  xmlreader.c xmlregexp.c xmlschemas.c xmlschemastypes.c xpath.c:
  code cleanup, especially the function comments.
* tree.c: fixed a small bug when freeing nodes which are XInclude ones.
Daniel
diff --git a/c14n.c b/c14n.c
index e80536e..cd410cc 100644
--- a/c14n.c
+++ b/c14n.c
@@ -283,8 +283,8 @@
 
 /**
  * xmlC14NVisibleNsStackFind:
- * @ctx			the C14N context 
- * @ns			the namespace to check
+ * @ctx:		the C14N context 
+ * @ns:			the namespace to check
  *
  * Checks whether the given namespace was already rendered or not
  *