[gcc r12-1189] MAINTAINERS: Add DCO version number.

[Jason Merrill]

https://gcc.gnu.org/g:be54520ea0422f4b5468cbbcf139be7e3a6cdeea

commit r12-1189-gbe54520ea0422f4b5468cbbcf139be7e3a6cdeea
Author: Jason Merrill <jason@redhat.com>
Date:   Thu Jun 3 00:10:47 2021 -0400

    MAINTAINERS: Add DCO version number.
    
    ChangeLog:
    
            * MAINTAINERS: Add DCO version number.

Diff:
---
 MAINTAINERS | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7a5c3ac57da..57c809c3425 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -690,4 +690,5 @@ Dara Hazeghi					<dhazeghi@yahoo.com>
 
 By adding your name and email to this section, you certify that all your
 subsequent contributions to GCC are made under the terms of the Developer's
-Certificate of Origin.  See https://gcc.gnu.org/dco.html for more information.
+Certificate of Origin Version 1.1.  See https://gcc.gnu.org/dco.html for more
+information.