[libxml2] fix Schematron spelling

[Nick Wellnhofer <nwellnhof src gnome org>]

commit e9270ef0d45b8c7c4df991fff494e0b65fc95ea6
Author: Mehltretter Karl <kmehltretter pcs de>
Date:   Fri May 6 10:44:03 2022 +0200

    fix Schematron spelling

 include/libxml/schematron.h      | 2 +-
 os400/libxmlrpg/schematron.rpgle | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/include/libxml/schematron.h b/include/libxml/schematron.h
index 364eaecd..c61e61b3 100644
--- a/include/libxml/schematron.h
+++ b/include/libxml/schematron.h
@@ -1,5 +1,5 @@
 /*
- * Summary: XML Schemastron implementation
+ * Summary: XML Schematron implementation
  * Description: interface to the XML Schematron validity checking.
  *
  * Copy: See Copyright for the status of this software.
diff --git a/os400/libxmlrpg/schematron.rpgle b/os400/libxmlrpg/schematron.rpgle
index 8271ca5e..3f0ae336 100644
--- a/os400/libxmlrpg/schematron.rpgle
+++ b/os400/libxmlrpg/schematron.rpgle
@@ -1,4 +1,4 @@
-      * Summary: XML Schemastron implementation
+      * Summary: XML Schematron implementation
       * Description: interface to the XML Schematron validity checking.
       *
       * Copy: See Copyright for the status of this software.