by `grep-compute-defaults'; to change the default value, use
\\[customize] or call the function `grep-apply-setting'.
-This variable can either be a string, or a cons on the
+This variable can either be a string, or a cons of the
form (COMMAND . POSITION). In the latter case, COMMAND will be
-used as the default command, and point will be placed on POSITION
+used as the default command, and point will be placed at POSITION
for easier editing."
:type '(choice string
(cons string integer)