[glibc] Update kernel version to 5.9 in tst-mman-consts.py.

[Joseph Myers]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=6f21b0c5edcdb36a8b094f2c2a2365d73caeeb72

commit 6f21b0c5edcdb36a8b094f2c2a2365d73caeeb72
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Mon Oct 26 16:40:50 2020 +0000

    Update kernel version to 5.9 in tst-mman-consts.py.
    
    This patch updates the kernel version in the test tst-mman-consts.py
    to 5.9.  (There are no new MAP_* constants covered by this test in 5.9
    that need any other header changes.)
    
    Tested with build-many-glibcs.py.

Diff:
---
 sysdeps/unix/sysv/linux/tst-mman-consts.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sysdeps/unix/sysv/linux/tst-mman-consts.py b/sysdeps/unix/sysv/linux/tst-mman-consts.py
index 874992251c..74cc88188f 100644
--- a/sysdeps/unix/sysv/linux/tst-mman-consts.py
+++ b/sysdeps/unix/sysv/linux/tst-mman-consts.py
@@ -33,7 +33,7 @@ def main():
                         help='C compiler (including options) to use')
     args = parser.parse_args()
     linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
-    linux_version_glibc = (5, 8)
+    linux_version_glibc = (5, 9)
     sys.exit(glibcextract.compare_macro_consts(
         '#define _GNU_SOURCE 1\n'
         '#include <sys/mman.h>\n',