changed changed sys.path setting from 'append' to 'insert' (patch supplied

* check-relaxng-test-suite.py, check-relaxng-test-suite2.py,
  check-xinclude-test-suite.py, check-xml-test-suite.py,
  check-xsddata-test-suite.py, doc/examples/index.py: changed
  changed sys.path setting from 'append' to 'insert' (patch
  supplied by Malcolm Tredinnick) (bug 153716)
diff --git a/check-xml-test-suite.py b/check-xml-test-suite.py
index ed0eaa2..2de07b1 100755
--- a/check-xml-test-suite.py
+++ b/check-xml-test-suite.py
@@ -3,7 +3,7 @@
 import time
 import os
 import string
-sys.path.append("python")
+sys.path.insert(0, "python")
 import libxml2
 
 test_nr = 0