[gcc r10-10124] Daily bump.

[GCC Administrator]

https://gcc.gnu.org/g:41733744a75da665c1738a3c1facd399a274849c

commit r10-10124-g41733744a75da665c1738a3c1facd399a274849c
Author: GCC Administrator <gccadmin@gcc.gnu.org>
Date:   Thu Sep 16 00:17:09 2021 +0000

    Daily bump.

Diff:
---
 gcc/DATESTAMP | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/DATESTAMP b/gcc/DATESTAMP
index 5de3919d174..4e6a8dcc7b6 100644
--- a/gcc/DATESTAMP
+++ b/gcc/DATESTAMP
@@ -1 +1 @@
-20210915
+20210916