Instead of Calling cl-assert, Signal Error With a Message

[sshaw]

Just got an error message exporting to a file:

cl--assertion-failed: Assertion failed: (file-exists-p file)

Had to (setq debug-on-error t) to figure out why:

org-clock-csv/org-clock-csv.el

Lines 214 to 216 in e2fbaa1

	;; For the sake of better debug messages, check whether all of the
	;; files exists first.
	(mapc (lambda (file) (cl-assert (file-exists-p file))) filelist))

The irony of the associated comment is not lost on me 😄

[atheriel]

I believe the comment refers to the fact that an even more obscure-looking error will occur if one of the files does not exist. However, I take your point -- the user-visible message could definitely be improved here.