Fixed deprecation warning on dulwich commit api + fixed commit message add blank at the end

rhodecode/lib/vcs/backends/git/inmemory.py

@@ -83,7 +83,8 class GitInMemoryChangeset(BaseInMemoryC
                     curtree = newtree
                 parent[reversed_dirnames[-1]] = DIRMOD, curtree.id
             else:
-                parent.add(node.mode, node_path, blob.id)
+                parent.add(name=node_path, mode=node.mode, hexsha=blob.id)
+
             new_trees.append(parent)
             # Update ancestors
             for parent, tree, path in reversed([(a[1], b[1], b[0]) for a, b in
@@ -123,7 +124,7 class GitInMemoryChangeset(BaseInMemoryC
         commit.parents = [p._commit.id for p in self.parents if p]
         commit.author = commit.committer = safe_str(author)
         commit.encoding = ENCODING
-        commit.message = safe_str(message) + ' '
+        commit.message = safe_str(message)
 
         # Compute date
         if date is None: