fixed #99082 for xi:include encoding="..." support on text includes. added

* xinclude.c parserInternals.c encoding.c: fixed #99082
  for xi:include encoding="..." support on text includes.
* result/XInclude/tstencoding.xml test/XInclude/docs/tstencoding.xml
  test/XInclude/ents/isolatin.txt : added a specific regression test
* python/generator.py python/libxml2class.txt: fixed the generator
  the new set of comments generated for doc/libxml2-api.xml were
  breaking the python generation.
Daniel
diff --git a/python/generator.py b/python/generator.py
index a8a1b87..9cc3abc 100755
--- a/python/generator.py
+++ b/python/generator.py
@@ -746,7 +746,7 @@
          output.write('\n  ');
          output.write(indent)
      output.write(val);
-     output.write('"""\n')
+     output.write(' """\n')
 
 def buildWrappers():
     global ctypes