git: 086165376b02 - stable/12 - Revert r348518

[Warner Losh]

The branch stable/12 has been updated by imp:

URL: https://cgit.FreeBSD.org/src/commit/?id=086165376b029983658816a16a44e5ec0b4f0363

commit 086165376b029983658816a16a44e5ec0b4f0363
Author:     Warner Losh <imp at FreeBSD.org>
AuthorDate: 2019-06-02 20:52:21 +0000
Commit:     Warner Losh <imp at FreeBSD.org>
CommitDate: 2021-07-10 17:11:15 +0000

    Revert r348518
    
    It should not have happened. The change is actually in upstream and I misread the diffs.
    
    (cherry picked from commit adb46ac4c0a64c2cd1fbf46022f4aafb4e605cd3)
---
 contrib/one-true-awk/tran.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/contrib/one-true-awk/tran.c b/contrib/one-true-awk/tran.c
index 837f3742bc4f..8577a0b11d31 100644
--- a/contrib/one-true-awk/tran.c
+++ b/contrib/one-true-awk/tran.c
@@ -366,7 +366,7 @@ char *setsval(Cell *vp, const char *s)	/* set string val of a Cell */
 		if (donerec == 0)
 			recbld();
 	}
-	t = tostring(s);	/* in case it's self-assign */
+	t = s ? tostring(s) : tostring("");	/* in case it's self-assign */
 	if (freeable(vp))
 		xfree(vp->sval);
 	vp->tval &= ~(NUM|CONVC|CONVO);