let ls not default to ls -l -a

scheme/std-command.scm

@@ -127,8 +127,8 @@
 ;; We don't care for options that format the output.
 
 (define defaults-ls-options
-  '((long . #t) 
-    (dot-files? . #t) 
+  '((long . #f) 
+    (dot-files? . #f) 
     (sort-by-mtime . #f) 
     (reverse-sort . #f)))
 
@@ -170,7 +170,7 @@
   no-completer
   (lambda (command args)
     (debug-message "running ls plugin" command args)
-    (receive (options paths) (parse-ls-arguments args)
+    (receive (options paths) (parse-ls-arguments args) ;; 'long is ignored
       (let* ((set? (lambda (opt) (cdr (assoc opt options))))
              (sort
               (if (set? 'sort-by-mtime)