bug#52347: Shell: error when -m manifest is removed

[Maxime Devos]

Cayetano Santos schreef op di 07-12-2021 om 19:11 [+0100]:
> In guix/scripts/environment.scm:
>    627:17  5 (_ _)
>    576:23  4 (validate-exit-status _ _ 32512)
> In guix/utils.scm:
>     954:4  3 (string-closest _ _ #:threshold _)
> In guix/combinators.scm:
>     46:32  2 (fold2 #<procedure 7fbb10e14380 at 
>     guix/utils.scm:954:…> …)
> In ice-9/boot-9.scm:
>   1685:16  1 (raise-exception _ #:continuable? _)
>   1685:16  0 (raise-exception _ #:continuable? _)
> 
> ice-9/boot-9.scm:1685:16: In procedure raise-exception:
> In procedure car: Wrong type argument in position 1 (expecting 
> pair): #f

Seems like suggest-command-name is passing #f to string-closest instead
of a list (a bug!).