Use https in homepage URL.

README

@@ -3,7 +3,7 @@ This is the Dulwich project.
 It aims to provide an interface to git repos (both local and remote) that
 doesn't call out to git directly but instead uses pure Python.
 
-Homepage: http://samba.org/~jelmer/dulwich/
+Homepage: https://samba.org/~jelmer/dulwich/
 Author: Jelmer Vernooij <jelmer@samba.org>
 
 The project is named after the part of London that Mr. and Mrs. Git live in

setup.py

@@ -57,7 +57,7 @@ setup(name='dulwich',
       description='Python Git Library',
       keywords='git',
       version=dulwich_version_string,
-      url='http://samba.org/~jelmer/dulwich',
+      url='https://samba.org/~jelmer/dulwich',
       license='GPLv2 or later',
       author='Jelmer Vernooij',
       author_email='jelmer@samba.org',