[gobject-introspection: 1/2] Drop deprecated and redundant universal newline mode

[Christoph Reiter <creiter src gnome org>]

commit d84347ecb4d4e8d5bba4a91d339fec113d52ee6e
Author: Tomasz Miąsko <tomasz miasko gmail com>
Date:   Sun Dec 9 00:00:00 2018 +0000

    Drop deprecated and redundant universal newline mode

 misc/update-gtkdoc-tests.py | 2 +-
 tests/warn/warningtester.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/misc/update-gtkdoc-tests.py b/misc/update-gtkdoc-tests.py
index 22098430..566d6ac0 100644
--- a/misc/update-gtkdoc-tests.py
+++ b/misc/update-gtkdoc-tests.py
@@ -191,7 +191,7 @@ if __name__ == '__main__':
                 writer = GtkDocCommentBlockWriter(indent=True)
                 logger.enable_warnings((ERROR, FATAL))
 
-                with io.open(path, 'rU') as f:
+                with io.open(path, 'r') as f:
                     lines = f.readlines()
 
                 chunks = []
diff --git a/tests/warn/warningtester.py b/tests/warn/warningtester.py
index 8f441879..afc78ce0 100644
--- a/tests/warn/warningtester.py
+++ b/tests/warn/warningtester.py
@@ -78,7 +78,7 @@ def _diff(a, b):
 
 
 def _extract_expected(filename):
-    fd = open(filename, 'rU')
+    fd = open(filename, 'r')
     data = fd.read()
     fd.close()