git: a528bad95e0c - stable/12 - elfctl: error if -e is specified multiple times

The branch stable/12 has been updated by emaste:

URL: https://cgit.FreeBSD.org/src/commit/?id=a528bad95e0c80fe612051076d53b8bc8283e239

commit a528bad95e0c80fe612051076d53b8bc8283e239
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2022-02-15 03:04:29 +0000
Commit:     Ed Maste <emaste@FreeBSD.org>
CommitDate: 2022-02-18 00:33:47 +0000

    elfctl: error if -e is specified multiple times
    
    Reported by:    jrm
    MFC after:      3 days
    Sponsored by:   The FreeBSD Foundation
    
    (cherry picked from commit f0cf9b602dc0375dfc279500e0314b7c55273bf0)
---
 usr.bin/elfctl/elfctl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/usr.bin/elfctl/elfctl.c b/usr.bin/elfctl/elfctl.c
index 1042712f828a..b4482f82e7ef 100644
--- a/usr.bin/elfctl/elfctl.c
+++ b/usr.bin/elfctl/elfctl.c
@@ -120,6 +120,8 @@ main(int argc, char **argv)
 			lflag = true;
 			break;
 		case 'e':
+			if (features != NULL)
+				errx(1, "-e may be specified only once");
 			features = optarg;
 			editfeatures = true;
 			break;