Fix an error in comment

nsWarn handler is not about parser fatal errors
diff --git a/parser.c b/parser.c
index 0770138..9619010 100644
--- a/parser.c
+++ b/parser.c
@@ -735,7 +735,7 @@
  * @info1:  extra information string
  * @info2:  extra information string
  *
- * Handle a fatal parser error, i.e. violating Well-Formedness constraints
+ * Handle a namespace warning error
  */
 static void
 xmlNsWarn(xmlParserCtxtPtr ctxt, xmlParserErrors error,