test-commit-interactive: add more globs for no-execbit platforms The ability to set the exec bit on Windows would be real handy for this test..

ui: disable revsetaliases in plain mode (BC) ui.plain() is supposed to disable config options that change the UI to the detriment of scripts. As the test demonstrates, revset aliases can actually override builtin ones, just like command aliases. Therefore I believe this is a bugfix and appropriate for stable.