[meld] dirdiff, tree: PEP8 fixes

[Kai Willadsen <kaiw src gnome org>]

commit 815864e889f32c97675de20891e5c01fc1e7d982
Author: Kai Willadsen <kai willadsen gmail com>
Date:   Thu Nov 22 06:53:42 2018 +1000

    dirdiff, tree: PEP8 fixes

 meld/dirdiff.py | 6 ++++--
 meld/tree.py    | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)
---
diff --git a/meld/dirdiff.py b/meld/dirdiff.py
index 5cebb116..2fffadc7 100644
--- a/meld/dirdiff.py
+++ b/meld/dirdiff.py
@@ -129,7 +129,7 @@ def _contents_same(contents, file_size):
                 return Different
 
 
-def _normalize(contents, ignore_blank_lines, regexes = ()):
+def _normalize(contents, ignore_blank_lines, regexes=()):
     contents = (bytes(c) for c in contents)
     # For probable text files, discard newline differences to match
     if ignore_blank_lines:
@@ -1133,7 +1133,9 @@ class DirDiff(MeldDoc, Component):
                 # We can skip recalculation if the new cursor is between
                 # the previous/next bounds, and we weren't on a changed row
                 state = self.model.get_state(old_cursor, 0)
-                if state not in (tree.STATE_NORMAL, tree.STATE_NOCHANGE, tree.STATE_EMPTY):
+                if state not in (
+                        tree.STATE_NORMAL, tree.STATE_NOCHANGE,
+                        tree.STATE_EMPTY):
                     skip = False
                 else:
                     if self.prev_path is None and self.next_path is None:
diff --git a/meld/tree.py b/meld/tree.py
index 801cd133..3a04115e 100644
--- a/meld/tree.py
+++ b/meld/tree.py
@@ -177,7 +177,8 @@ class DiffTreeStore(SearchableTreeStore):
     def _find_next_prev_diff(self, start_path):
         def match_func(it):
             # TODO: It works, but matching on the first pane only is very poor
-            return self.get_state(it, 0) not in (STATE_NORMAL, STATE_NOCHANGE, STATE_EMPTY)
+            return self.get_state(it, 0) not in (
+                STATE_NORMAL, STATE_NOCHANGE, STATE_EMPTY)
 
         return self.get_previous_next_paths(start_path, match_func)