Fix Bug#22145

* lisp/net/tramp-cache.el (tramp-get-connection-property)
(tramp-set-connection-property, tramp-connection-property-p)
(tramp-flush-connection-property): Improve docstring.

* lisp/net/tramp-sh.el (tramp-maybe-open-connection): Use it.

* lisp/net/tramp.el (tramp-get-local-locale): New defun.

* test/automated/tramp-tests.el (tramp--test-utf8):
Improve settings of coding systems.  (Bug#22145)

1 files changed, 6 insertions, 3 deletions

diff --git a/test/lisp/net/tramp-tests.el b/test/lisp/net/tramp-tests.el
index a29e42e7343..a12ee387576 100644
--- a/test/lisp/net/tramp-tests.el
+++ b/test/lisp/net/tramp-tests.el
@@ -2033,9 +2033,12 @@ Use the `ls' command."
 
 (defun tramp--test-utf8 ()
   "Perform the test in `tramp-test32-utf8*'."
-  (let ((coding-system-for-read 'utf-8)
-        (coding-system-for-write 'utf-8)
-        (file-name-coding-system 'utf-8))
+  (let* ((utf8 (if (and (eq system-type 'darwin)
+                        (memq 'utf-8-hfs (coding-system-list)))
+                   'utf-8-hfs 'utf-8))
+         (coding-system-for-read utf8)
+         (coding-system-for-write utf8)
+         (file-name-coding-system utf8))
     (tramp--test-check-files
      (unless (tramp--test-hpux-p) "Γυρίστε το Γαλαξία με Ώτο Στοπ")
      (unless (tramp--test-hpux-p)