Support --version option like upstream awk but don't document it.

Upstream awk has supported --version for a long time but does not
support -V like our awk does.  Both options are supported by gawk.

diff --git a/usr.bin/awk/main.c b/usr.bin/awk/main.c
index 5a976d8..2ec0bc7 100644 (file)
--- a/usr.bin/awk/main.c
+++ b/usr.bin/awk/main.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: main.c,v 1.61 2023/09/18 19:32:19 millert Exp $       */
+/*     $OpenBSD: main.c,v 1.62 2023/09/20 16:57:12 millert Exp $       */
 /****************************************************************
 Copyright (C) Lucent Technologies 1997
 All Rights Reserved
@@ -170,6 +170,10 @@ int main(int argc, char *argv[])
        yyin = NULL;
        symtab = makesymtab(NSYMTAB);
        while (argc > 1 && argv[1][0] == '-' && argv[1][1] != '\0') {
+               if (strcmp(argv[1], "--version") == 0) {
+                       printf("awk %s\n", version);
+                       return 0;
+               }
                if (strcmp(argv[1], "--") == 0) {       /* explicit end of args */
                        argc--;
                        argv++;
@@ -214,8 +218,7 @@ int main(int argc, char *argv[])
                        break;
                case 'V':       /* added for exptools "standard" */
                        printf("awk %s\n", version);
-                       exit(0);
-                       break;
+                       return 0;
                default:
                        WARNING("unknown option %s ignored", argv[1]);
                        break;