Be consistent in manpage

noice.1

@@ -82,7 +82,7 @@ is found the program
 .Xr less 1
 is invoked.  This is useful for editing text files
 as one can use the 'v' command in
-.Xr less 1 to edit the file in $EDITOR.
+.Xr less 1 to edit the file using the EDITOR environment variable.
 .Pp
 See the examples section below for more information.
 .Sh FILTERS