michaelplatings added inline comments.

================
Comment at: llvm/utils/lit/lit/llvm/config.py:171
+            # in the tests that do the same thing.
+            (_, try_touch_err) = self.get_process_output(["touch", "-a", "-t", 
"199505050555.55", f.name])
+            if try_touch_err != "":
----------------
lenary wrote:
> michaelplatings wrote:
> > It looks like this command will be run on Windows. I think it will fail and 
> > cause False to be returned, which is the desired result, but this appears 
> > to be by accident rather than design. Therefore I'm inclined to agree with 
> > @int3 that a hard-coded check would be preferable.
> I am going to add the hardcoded checks, but I think `touch` is available in 
> windows, it should be in the same directory as all the git binaries.
This is definitely tangential to the change, but in case it's useful to know: 
conventionally only `C:\Program Files\Git\bin` is added to the path on Windows, 
not `C:\Program Files\Git\usr\bin`. `C:\Program Files\Git\bin` only contains 
`bash.exe`, `git.exe` and `sh.exe`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D144638/new/

https://reviews.llvm.org/D144638

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