tempdir: error on non-directory result #33593
Merged
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Potential more graceful handling of #33382. I thought about creating the directory if it doesn't exist, but that seems aa bit questionable. Probably better to let the user know about the situation in a clear way so they can mitigate it. An even better improvement would be if we could tell them which environment variable to look at. I tried setting
TEMP
in the environment on macOS but it didn't seem to have any effect on the result.