Don’t adjust CRLF in file names

* doc/misc/gnus.texi (Non-ASCII Group Names):
* etc/NEWS:
* test/lisp/net/tramp-tests.el (tramp--test-utf8):
Use utf-8-unix, not utf-8, for default-file-name-coding-system, so
that CRLF in file names is left alone.
* lisp/international/mule-cmds.el (set-default-coding-systems):
Do not alter CRLF in file name coding systems.
(prefer-coding-system): Ignore differences in CRLF processing when
checking whether we used the user-specified file name coding system.
* test/src/fileio-tests.el: New file.

1 files changed, 2 insertions, 2 deletions

diff --git a/doc/misc/gnus.texi b/doc/misc/gnus.texi
index e00e173bc18..cd94156df36 100644
--- a/doc/misc/gnus.texi
+++ b/doc/misc/gnus.texi
@@ -4340,10 +4340,10 @@ does not necessarily need to be the same value that is determined by
 @code{gnus-group-name-charset-group-alist}.
 
 If @code{default-file-name-coding-system} or this variable is
-initialized by default to @code{iso-latin-1} for example, although you
+initialized by default to @code{iso-latin-1-unix} for example, although you
 want to subscribe to the groups spelled in Chinese, that is the most
 typical case where you have to customize
-@code{nnmail-pathname-coding-system}.  The @code{utf-8} coding system is
+@code{nnmail-pathname-coding-system}.  The @code{utf-8-unix} coding system is
 a good candidate for it.  Otherwise, you may change the locale in your
 system so that @code{default-file-name-coding-system} or this variable
 may be initialized to an appropriate value.