This command shares argument histories with \\[rgrep] and \\[grep].
-If CONFIRM, the user will be given an opportunity to edit the
+If CONFIRM is non-nil, the user will be given an opportunity to edit the
command before it's run."
(interactive
(progn
When called programmatically and FILES is nil, REGEXP is expected
to specify a command to run.
-If CONFIRM, the user will be given an opportunity to edit the
+If CONFIRM is non-nil, the user will be given an opportunity to edit the
command before it's run."
(interactive
(progn
Like `rgrep' but uses `zgrep' for `grep-program', sets the default
file name to `*.gz', and sets `grep-highlight-matches' to `always'.
-If CONFIRM, the user will be given an opportunity to edit the
+If CONFIRM is non-nil, the user will be given an opportunity to edit the
command before it's run."
(interactive
(progn