grep: accept and ignore --color[=anything]

function                                             old     new   delta
grep_main                                            827     834      +7

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 8 insertions, 3 deletions

diff --git a/findutils/grep.c b/findutils/grep.c
index 88de0d4ef..3e8ea9239 100644
--- a/findutils/grep.c
+++ b/findutils/grep.c
@@ -704,10 +704,15 @@ int grep_main(int argc UNUSED_PARAM, char **argv)
         /* do normal option parsing */
 #if ENABLE_FEATURE_GREP_CONTEXT
         /* -H unsets -h; -C unsets -A,-B */
-        opts = getopt32(argv,
-                "^" OPTSTR_GREP "\0" "H-h:C-AB",
+        opts = getopt32long(argv, "^"
+                OPTSTR_GREP
+                        "\0"
+                        "H-h:C-AB",
+                "color\0" Optional_argument "\xff",
                 &pattern_head, &fopt, &max_matches,
-                &lines_after, &lines_before, &Copt);
+                &lines_after, &lines_before, &Copt
+                , NULL
+        );
 
         if (opts & OPT_C) {
                 /* -C unsets prev -A and -B, but following -A or -B