vim-patch:7.4.1477

Problem:    Test_reltime is flaky, it depends on timing.
Solution:   When it fails run it a second time.

b5760a1ce5

src/nvim/testdir/runtest.vim

@@ -221,6 +221,7 @@ endif
 " Names of flaky tests.
 let s:flaky = [
       \ 'Test_oneshot()',
+      \ 'Test_reltime()',
       \ 'Test_terminal_composing_unicode()',
       \ 'Test_terminal_redir_file()',
       \ 'Test_with_partial_callback()',