MarcWeber/vim-addon-manager — comment on commit bec80263e9297bb0ebfc986fd496213490f0f863
File: doc/vim-addon-manager.txt line 430
By ZyX-I:

> > 1. Why have you dropped note about trailing path separators?
> Because having a//b does not hurt.

No. See do_diff implementation, it is not `a//b`, it is `a/.diff` or like.