; Be more strict with command arguments for a few Eshell commands

* lisp/eshell/em-dirs.el (eshell/pwd):
* lisp/eshell/em-unix.el (eshell/whoami):
* lisp/eshell/esh-proc.el (eshell/jobs): Don't accept arguments.

lisp/eshell/em-dirs.el

@@ -316,7 +316,7 @@ Thus, this does not include the current directory.")
                    (`(boundaries . ,suffix)
                     `(boundaries 0 . ,(string-search "/" suffix))))))))))
 
-(defun eshell/pwd (&rest _args)
+(defun eshell/pwd ()
   "Change output from `pwd' to be cleaner."
   (let* ((path default-directory)
 	 (len (length path)))

lisp/eshell/em-unix.el

@@ -1018,7 +1018,7 @@ Show wall-clock time elapsed during execution of COMMAND.")
 				  (eshell-stringify-list
 				   (flatten-tree (cdr time-args))))))))
 
-(defun eshell/whoami (&rest _args)
+(defun eshell/whoami ()
   "Make \"whoami\" Tramp aware."
   (eshell-user-login-name))
 

lisp/eshell/esh-proc.el

@@ -193,7 +193,7 @@ This is like `process-live-p', but additionally checks whether
 
 (defalias 'eshell/wait #'eshell-wait-for-process)
 
-(defun eshell/jobs (&rest _args)
+(defun eshell/jobs ()
   "List processes, if there are any."
   (and (fboundp 'process-list)
        (process-list)