Always print the expanded directory name for Eshell's "pwd" command

* lisp/eshell/em-dirs.el (eshell-pwd-convert-function): Default to
'expand-file-name' on all systems.

* etc/NEWS: Announce this change.

etc/NEWS

@@ -704,6 +704,13 @@ Use 'if-let*', 'when-let*' and 'and-let*' instead.
 This effectively obsoletes the old '(if-let (SYMBOL SOMETHING) ...)'
 single binding syntax, which we'd kept only for backwards compatibility.
 
+---
+** The Eshell 'pwd' command now expands the directory name on all systems.
+This ensures that user directories are properly expanded to their full
+name.  Previously, Eshell only did this for MS-Windows systems. To
+restore the old behavior, you can set 'eshell-pwd-convert-function' to
+'identity'.
+
 
 * Lisp Changes in Emacs 31.1
 

lisp/eshell/em-dirs.el

@@ -65,9 +65,7 @@ they lack somewhat in feel from the typical shell equivalents."
   :version "24.1"			; removed eshell-dirs-initialize
   :type 'hook)
 
-(defcustom eshell-pwd-convert-function (if (eshell-under-windows-p)
-					   #'expand-file-name
-					 #'identity)
+(defcustom eshell-pwd-convert-function #'expand-file-name
   "The function used to normalize the value of Eshell's `pwd'.
 The value returned by `pwd' is also used when recording the
 last-visited directory in the last-dir-ring, so it will affect the
@@ -75,7 +73,8 @@ form of the list used by `cd ='."
   :type '(radio (function-item file-truename)
 		(function-item expand-file-name)
 		(function-item identity)
-		(function :tag "Other")))
+		(function :tag "Other"))
+  :version "31.1")
 
 (defcustom eshell-ask-to-save-last-dir 'always
   "Determine if the last-dir-ring should be automatically saved.