fixed a number of warnings shown by HP-UX compiler and reported by Rick

* HTMLparser.c configure.in parserInternals.c runsuite.c runtest.c
  testapi.c xmlschemas.c xmlschemastypes.c xmlstring.c: fixed a number
  of warnings shown by HP-UX compiler and reported by Rick Jones
Daniel
diff --git a/xmlstring.c b/xmlstring.c
index 67a20b9..2ef62fb 100644
--- a/xmlstring.c
+++ b/xmlstring.c
@@ -148,7 +148,7 @@
  * @str2:  the second xmlChar *
  *
  * Check if both string are equal of have same content
- * Should be a bit more readable and faster than xmlStrEqual()
+ * Should be a bit more readable and faster than xmlStrcmp()
  *
  * Returns 1 if they are equal, 0 if they are different
  */