Fix tests on python3.

dulwich/objects.py

@@ -583,7 +583,7 @@ class Blob(ShaFile):
         for chunk in chunks:
             lines = chunk.splitlines(True)
             if len(lines) > 1:
-                ret.append((remaining or "") + lines[0])
+                ret.append((remaining or b"") + lines[0])
                 ret.extend(lines[1:-1])
                 remaining = lines[-1]
             elif len(lines) == 1:

dulwich/porcelain.py

@@ -353,7 +353,7 @@ def print_commit(commit, decode, outstream=sys.stdout):
 
     time_tuple = time.gmtime(commit.author_time + commit.author_timezone)
     time_str = time.strftime("%a %b %d %Y %H:%M:%S", time_tuple)
-    timezone_str = format_timezone(commit.author_timezone)
+    timezone_str = format_timezone(commit.author_timezone).decode('ascii')
     outstream.write("Date:   " + time_str + " " + timezone_str + "\n")
     outstream.write("\n")
     outstream.write(decode(commit.message) + "\n")

dulwich/tests/test_objects.py

@@ -139,14 +139,14 @@ class BlobReadTests(TestCase):
     def test_splitlines(self):
         for case in [
             [],
-            ['foo\nbar\n'],
-            ['bl\na', 'blie'],
-            ['bl\na', 'blie', 'bloe\n'],
-            ['', 'bl\na', 'blie', 'bloe\n'],
-            ['', '', '', 'bla\n'],
-            ['', '', '', 'bla\n', ''],
-            ['bl', '', 'a\naaa'],
-            ['a\naaa', 'a'],
+            [b'foo\nbar\n'],
+            [b'bl\na', b'blie'],
+            [b'bl\na', b'blie', b'bloe\n'],
+            [b'', b'bl\na', b'blie', b'bloe\n'],
+            [b'', b'', b'', b'bla\n'],
+            [b'', b'', b'', b'bla\n', b''],
+            [b'bl', b'', b'a\naaa'],
+            [b'a\naaa', b'a'],
             ]:
             b = Blob()
             b.chunked = case