typoo in ensure_index causing exception
typoo in ensure_index causing exception

Fixes error `'Indices' object has no attribute 'indices'` when connection.ensure_index(..., clear=True) is called and the index exists.
HackLinux/pyes,haiwen/pyes,aparo/pyes,HackLinux/pyes,haiwen/pyes,jayzeng/pyes,Fiedzia/pyes,Fiedzia/pyes,Fiedzia/pyes,jayzeng/pyes,aparo/pyes,mavarick/pyes,mavarick/pyes,mavarick/pyes,HackLinux/pyes,jayzeng/pyes,aparo/pyes,haiwen/pyes