tests: add test-commit-interactive-curses.t "require tic" for test portability Standard library of Python on Windows doesn't have curses module.

tests: use "?" to glob both ":" and ";" in output for test portability If environment variable looks like PATH or so (e.g. any of components joined by ":" contains "/"), ":" in it is replaced with ";" by MinGW at spawning Windows native process, to follow path concatenation style of Windows. Therefore, "bundle:../full.hg" is converted into "bundle;..\full.hg" on MinGW. Difference between "/" and "\" is automatically ignored by "(glob)", but difference between ":" and ";" should be globed explicitly.

tests: invoke printenv.py via sh -c for test portability On Windows platform, invoking printenv.py directly via hook is problematic, because: - unless binding between *.py suffix and python runtime, application selector dialog is displayed, and running test is blocked at each printenv.py invocations - it isn't safe to assume binding between *.py suffix and python runtime, because application binding is easily broken For example, installing IDE (VisualStudio with Python Tools, or so) often requires binding between source files and IDE itself. This patch invokes printenv.py via sh -c for test portability. This is a kind of follow up for d19787db6fe0, which eliminated explicit "python" for printenv.py. There are already other 'sh -c "printenv.py"' in *.t files, and this fix should be reasonable. This changes were confirmed in cases below: - without any application binding for *.py suffix - with binding between *.py suffix and VisualStudio This patch also replaces "echo + redirection" style with "heredoc" style, because: - hook command line is parsed by cmd.exe as shell at first, and - single quotation can't quote arguments on cmd.exe, therefore, - "printenv.py foobar" should be quoted by double quotation, but - nested quoting (or tricky escaping) isn't readable

largefiles: handle that a found standin file doesn't exist when removing it I somehow ended up in a situation where hg crashed on an unlink I introduced in 328545c7d8a1. I don't know how it happened and can't reproduce it. It seems like it only can happen when the file is removed between the time of check in a working directory context walk that finds a standin file, and the time of use when we try to remove it because the corresponding largefile doesn't exist. But better safe than sorry: replace the plain unlink with unlinkpath with ignoremissing=True. That will also remove remaining empty directories, which arguably is more correct.