bug#17903: Man-softhyphen-to-minus error when current-language-environment is shorter than 6 characters

[Glenn Morris]

Glenn Morris wrote:

> First fallout from "Do not allow out-of-range character position in
> Fcompare_strings".
>
> Ref: http://lists.gnu.org/archive/html/emacs-devel/2014-06/msg00470.html

Dmitry, please could you fix this? You'll also need to keep an eye out
for future reports with these symptoms. (Are you sure this change is
worth the pain it will cause?)

BTW, this is another change that needs an "incompatible change" NEWS entry.