a lot of small cleanups based on Linus' sparse check output. Daniel

* HTMLparser.c SAX2.c encoding.c globals.c parser.c relaxng.c
  runsuite.c runtest.c schematron.c testHTML.c testReader.c
  testRegexp.c testSAX.c testThreads.c valid.c xinclude.c xmlIO.c
  xmllint.c xmlmodule.c xmlschemas.c xpath.c xpointer.c: a lot of
  small cleanups based on Linus' sparse check output.
Daniel
diff --git a/globals.c b/globals.c
index bee542c..fcace75 100644
--- a/globals.c
+++ b/globals.c
@@ -344,7 +344,7 @@
  * Disabled by default
  */
 int xmlSaveNoEmptyTags = 0;
-int xmlSaveNoEmptyTagsThrDef = 0;
+static int xmlSaveNoEmptyTagsThrDef = 0;
 
 #ifdef LIBXML_SAX1_ENABLED
 /**