Which commit are you on?

I am on the b2b3159 build "mm-decode.el: Simplify regexp used to search
html meta tag" .. cannot recreate this problem in emacs -Q or with my
config loaded:

[image: pasted1]

On Mon, Feb 20, 2017 at 11:55 AM Yuri D'Elia <wavexx@thregr.org> wrote:

> On the current master, I noticed this error when completing for some
> function names, such as ``C-h f package-'':
>
> Debugger entered--Lisp error: (wrong-type-argument stringp nil)
>
> string-match("\\(\\`\\|/\\)package-x\\(\\.elc\\|\\.el\\|\\.so\\)?\\(\\.gz\\)?\\'"
> nil nil)
>   help--loaded-p("package-x")
>   help--load-prefixes((("package-" "package-x" "package")))
>   help--symbol-completion-table("package-" #[257 "\300!\206
>  \211\301N\207" [fboundp function-documentation] 3 "\n\n(fn F)"] lambda)
>   test-completion("package-" help--symbol-completion-table #[257
> "\300!\206     \211\301N\207" [fboundp function-documentation] 3 "\n\n(fn
> F)"])
>   completion--do-completion(20 27)
>
> It seems that I have a bare (nil) in the load-history, which
> help--loaded-p doesn't like.
>
> Is this expected?
> This doesn't occur on emacs 25.1
>
>
> --

Kaushal Modi