git: 02de91d74023 - main - proc_get_binpath(): return empty string instead of NULL

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=02de91d740235f186321d7d3e11d09737daba43e

commit 02de91d740235f186321d7d3e11d09737daba43e
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2021-11-03 15:11:33 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2021-11-03 15:30:10 +0000

    proc_get_binpath(): return empty string instead of NULL
    
    for strange case where queried process does not have text.
    
    Reported by:    Michael Butler <imb@protected-networks.net>
    Sponsored by:   The FreeBSD Foundation
    MFC after:      3 days
---
 sys/kern/kern_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/kern/kern_proc.c b/sys/kern/kern_proc.c
index 2156c5c465ba..d11f651960c0 100644
--- a/sys/kern/kern_proc.c
+++ b/sys/kern/kern_proc.c
@@ -2252,7 +2252,7 @@ proc_get_binpath(struct proc *p, char *binname, char **retbuf,
 	vp = p->p_textvp;
 	if (vp == NULL) {
 		PROC_UNLOCK(p);
-		*retbuf = NULL;
+		*retbuf = "";
 		*freebuf = NULL;
 		return (0);
 	}