bug#22145: 25.0.50; tramp and auto-revert tests hang on OS X

[Eli Zaretskii]

> From: Michael Albinus <michael.albinus@gmx.de>
> Date: Sat, 09 Jan 2016 14:00:54 +0100
> Cc: 22145@debbugs.gnu.org
> 
> Yes, setting the coding system to utf-8-hfs let pass Tramp tests on OS
> X. Except for the R2L Arabic string, but I can live with this.

Do you understand why the Arabic string fails?  Bidirectional scripts
have nothing to do with file names: file names are always stored in
strict logical order of the characters.

Can you show 2 strings that fail the test, and tell why they fail it
(i.e. which test fails to match the ert predicate)?  Maybe I can then
tell how to fix that for OS X.

Thanks.