* helm-grep.el: Try to fix zgrep resuming.
(helm-grep-init): Fix default-directory.
(helm-do-grep-1): make all args vars local.
pass helm-default-directory in helm args.
* helm-grep.el (helm-grep-init): Fix error in zgrep.
* helm-grep.el: Fix resuming in zgrep recurse.
* helm-grep.el (helm-do-grep-1): Fix comment.
* helm-grep.el: Fix local setting of grep command.
* helm-grep.el: Fix git-grep resuming too.