Extract `err-info` from cider-nrepl (#213)
Extract `err-info` from cider-nrepl (#213)

Extract `err-info` from cider-nrepl. It was removed there, as it was superseded by `with-safe-transport`, which handles middleware errors automatically. 
clojure-emacs/refactor-nrepl,clojure-emacs/refactor-nrepl