LLVM handling of long windows command lines incorrect

[DanAlbert]

Need to backport https://reviews.llvm.org/D83772

[stephenhines]

https://android-review.googlesource.com/c/toolchain/llvm-project/+/1518414 is the cherry-pick for r21e.

We should also mention that this is related to the request from issue #1386 .

[hhb]

https://android-review.googlesource.com/c/platform/prebuilts/clang/host/windows-x86/+/1595520 is the cherry-pick for 22b