Re: [PATCH 1/2] subtree: fix the GIT_EXEC_PATH sanity check to work on Windows

>> `test FILE1 -ef FILE2` checks wether the inode is the same.  And it's
>> POSIX, so I'm assuming that it's sufficiently portable, though I
>> haven't actually tested whether things other than Bash implement it.
>
> It's not POSIX. From
> https://pubs.opengroup.org/onlinepubs/009695399/utilities/test.html:
>
> 	Some additional primaries newly invented or from the KornShell
> 	appeared in an early proposal as part of the conditional command
> 	([[]]): s1 > s2, s1 < s2, str = pattern, str != pattern,
> 	f1 -nt f2, f1 -ot f2, and f1 -ef f2.
>
> Having said that, it appears that Bash implements it (what non-standard
> behavior _doesn't_ it implement ;-))
>
> And since Git for Windows ships with Bash, we can actually use it!