[NtQueryInformationProcess](https://learn.microsoft.com/en-us/windows/win32/api/winternl/nf-winternl-ntqueryinformationprocess) is an internal NT syscall which may change in the future. However, unlike other NT syscalls NtQueryInformationProcess is well documented on MSDN, so I think it's safe to use.
Boost shell detection by 0.3s on my machine. Note querying PowerShell's version `pwsh --version` costs another 0.2s
Currently we use `env -i /path/to/bash --norc --noprofile -c printf "%s" "$BASH_VERSION"` to detect bash version.
This is problematic on Windows because there is no `env` in $PATH ( there is env in $PATH of msys2 but not in $PATH of Windows )
With this modification the detection is also faster because 1 process is created only
MSYS2 version was built for smooth transition from POSIX api to Win32 api. It has almost identical output as Windows native version, except requiring msys runtime dll and being a bit slower.
李通洲