patch 8.2.3518: Test_xrestore sometimes fails
Problem: Test_xrestore sometimes fails.
Solution: Mark the test as flayky. Move marking test as flaky to the test
instead of listing them in runtest.
diff --git a/src/testdir/test_reltime.vim b/src/testdir/test_reltime.vim
index c76d7a1..2f2e7ae 100644
--- a/src/testdir/test_reltime.vim
+++ b/src/testdir/test_reltime.vim
@@ -5,6 +5,7 @@
CheckFeature float
func Test_reltime()
+ let g:test_is_flaky = 1
let now = reltime()
sleep 10m
let later = reltime()