tpope/vim-vinegar — pull request #15 by cuviper (2014-01-11 01:59:06+00:00)
Title: Map <Leader>- similar to :Sexplore

Extract the meat of `VinegarUp` into function s:opendir(), with an argument for the command to use, at first 'edit'. Then add a variant `VinegarSplitUp` which uses 'split' instead, and map to `-`.

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If you don't like `-` added by default, please consider still adding `VinegarSplitUp` so users can choose some mapping for this.