(grep-program): Remove commentary about zgrep.

Due to lack of papers from Kevin Rodgers.

diff --git a/lisp/progmodes/grep.el b/lisp/progmodes/grep.el
index fe2bbdec14eeec307fdce4703aa1c0875b5e260e..ac12efe8cdd0d158fe17ff23287034f089bbc813 100644 (file)
--- a/lisp/progmodes/grep.el
+++ b/lisp/progmodes/grep.el
@@ -315,17 +315,7 @@ Notice that using \\[next-error] or \\[compile-goto-error] modifies
 This gets tacked on the end of the generated expressions.")
 
 ;;;###autoload
-(defvar grep-program
-  ;; Currently zgrep has trouble.  It runs egrep instead of grep,
-  ;; and it doesn't pass along long options right.
-  "grep"
-  ;; (if (equal (condition-case nil    ; in case "zgrep" isn't in exec-path
-  ;;            (call-process "zgrep" nil nil nil
-  ;;                          "foo" null-device)
-  ;;          (error nil))
-  ;;        1)
-  ;;     "zgrep"
-  ;;   "grep")
+(defvar grep-program "grep"
   "The default grep program for `grep-command' and `grep-find-command'.
 This variable's value takes effect when `grep-compute-defaults' is called.")