inotify: inotify.server.walk*() cleanup

When not in root repo, if we meet a .hg, bail out.
break was used, but return can be safely used instead: if we go through break
then (top or not hginside) == False -> nothing is done after the for loop

hgext/inotify/server.py

@@ -41,7 +41,8 b' def walkrepodirs(repo):'
                 if kind == stat.S_IFDIR:
                     if name == '.hg':
                         hginside = True
-                        if not top: break
+                        if not top:
+                            return
                     else:
                         d = join(dirname, name)
                         if repo.dirstate._ignore(d):
@@ -76,7 +77,7 b' def walk(repo, root):'
                         if reporoot:
                             continue
                         else:
-                            break
+                            return
                     dirs.append(name)
                 elif kind in (stat.S_IFREG, stat.S_IFLNK):
                     files.append((name, kind))