Update kernel version to 5.8 in tst-mman-consts.py

[Joseph Myers]

This patch updates the kernel version in the test tst-mman-consts.py
to 5.8.  (There are no new MAP_* constants covered by this test in 5.8
that need any other header changes.)

Tested with build-many-glibcs.py.

diff --git a/sysdeps/unix/sysv/linux/tst-mman-consts.py b/sysdeps/unix/sysv/linux/tst-mman-consts.py
index 89f94c5dc2..874992251c 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, 7)
+    linux_version_glibc = (5, 8)
     sys.exit(glibcextract.compare_macro_consts(
         '#define _GNU_SOURCE 1\n'
         '#include <sys/mman.h>\n',

-- 
Joseph S. Myers
joseph@codesourcery.com