The branch stable/13 has been updated by kib:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=81baf3493b946ffe43da59fcd6c95458426c6c0b

commit 81baf3493b946ffe43da59fcd6c95458426c6c0b
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2021-11-28 02:46:56 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2021-12-06 00:23:44 +0000

    libc/gen/getgrent.c: plug warnings about write-only variables
    
    (cherry picked from commit 075fa5a9a8a3a140541ef07142ed5b721264c0e9)
---
 lib/libc/gen/getgrent.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/lib/libc/gen/getgrent.c b/lib/libc/gen/getgrent.c
index 5832cb8c6799..3743518c8f58 100644
--- a/lib/libc/gen/getgrent.c
+++ b/lib/libc/gen/getgrent.c
@@ -210,12 +210,11 @@ static int
 grp_marshal_func(char *buffer, size_t *buffer_size, void *retval, va_list ap,
     void *cache_mdata)
 {
-       char *name;
-       gid_t gid;
+       char *name __unused;
+       gid_t gid __unused;
        struct group *grp;
-       char *orig_buf;
-       size_t orig_buf_size;
-
+       char *orig_buf __unused;
+       size_t orig_buf_size __unused;
        struct group new_grp;
        size_t desired_size, size, mem_size;
        char *p, **mem;
@@ -305,8 +304,8 @@ static int
 grp_unmarshal_func(char *buffer, size_t buffer_size, void *retval, va_list ap,
     void *cache_mdata)
 {
-       char *name;
-       gid_t gid;
+       char *name __unused;
+       gid_t gid __unused;
        struct group *grp;
        char *orig_buf;
        size_t orig_buf_size;

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