bookmarks: use repo._bookmarks.recordchange instead of repo._bookmarks.write

We move from the old api repo._bookmarks.write to the new api
repo._bookmarks.recordchange.

mercurial/bookmarks.py

@@ -249,7 +249,14 b' def update(repo, parents, node):'
         update = True
 
     if update:
-        marks.write()
+        lock = tr = None
+        try:
+            lock = repo.lock()
+            tr = repo.transaction('bookmark')
+            marks.recordchange(tr)
+            tr.close()
+        finally:
+            lockmod.release(tr, lock)
     return update
 
 def listbookmarks(repo):