Fixing assorted potential problems raised by scan

* encoding.c parser.c relaxng.c runsuite.c tree.c xmlreader.c
  xmlschemas.c: nothing really serious but better safe than sorry
diff --git a/runsuite.c b/runsuite.c
index af8ee5e..e6545fb 100644
--- a/runsuite.c
+++ b/runsuite.c
@@ -307,7 +307,7 @@
  *									*
  ************************************************************************/
 
-static int 
+static int
 xsdIncorectTestCase(xmlNodePtr cur) {
     xmlNodePtr test;
     xmlBufferPtr buf;
@@ -319,7 +319,7 @@
     if (cur == NULL) {
         return(0);
     }
-    
+
     test = getNext(cur, "./*");
     if (test == NULL) {
         test_log("Failed to find test in correct line %ld\n",