Patch for portability of latin characters in C files

Coming from LibreOffice repository:
http://cgit.freedesktop.org/libreoffice/core/plain/libxml2/libxml2-latin.patch
diff --git a/runtest.c b/runtest.c
index 4953889..c6517a3 100644
--- a/runtest.c
+++ b/runtest.c
@@ -2724,7 +2724,7 @@
     "file:///path/to/a%20b.html",
     "/path/to/a b.html",
     "/path/to/a%20b.html",
-    "urip://example.com/résumé.html",
+    "urip://example.com/r" "\xe9" "sum" "\xe9" ".html",
     "urip://example.com/test?a=1&b=2%263&c=4#foo",
     NULL
 };