tests/test-admin-deploy-none: Update comment for ostreedev#1774 status

tests/test-admin-deploy-none.sh

@@ -35,8 +35,8 @@ cd ${test_tmpdir}
 rm httpd osdata testos-repo sysroot -rf
 setup_os_repository "archive" "sysroot.bootloader none"
 ${CMD_PREFIX} ostree pull-local --repo=sysroot/ostree/repo --remote testos testos-repo testos/buildmaster/x86_64-runtime
-# Test grub2 does not get detected with bootloader configuration "none"
-# (see https://github.com/ostreedev/ostree/issues/1774)
+# Test that configuring sysroot.bootloader="none" is a workaround for previous
+# grub2 bootloader issue (see https://github.com/ostreedev/ostree/issues/1774)
 mkdir -p sysroot/boot/grub2 && touch sysroot/boot/grub2/grub.cfg
 ${CMD_PREFIX} ostree admin deploy --karg=root=LABEL=MOO --karg=quiet --os testos testos/buildmaster/x86_64-runtime > out.txt
 assert_file_has_content out.txt "Bootloader updated.*"