net: cgo resolver return correctly the too many open files error

[mateusz834]

Fixes #56192
For #18588

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Message from Ian Lance Taylor:

Patch Set 1:

(1 comment)

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[gopherbot]

This PR (HEAD: 64b6a92) has been imported to Gerrit for code review.

Please visit https://go-review.googlesource.com/c/go/+/443255 to see it.

Tip: You can toggle comments from me using the comments slash command (e.g. /comments off)
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Message from Mateusz Poliwczak:

Patch Set 1:

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Message from Ian Lance Taylor:

Patch Set 2: Run-TryBot+1

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Message from Gopher Robot:

Patch Set 2:

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Message from Gopher Robot:

Patch Set 2: TryBot-Result+1

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Message from Ian Lance Taylor:

Patch Set 2:

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Message from Mateusz Poliwczak:

Patch Set 2:

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Message from Damien Neil:

Patch Set 4:

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Message from Mateusz Poliwczak:

Patch Set 4:

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Message from Ian Lance Taylor:

Patch Set 4: Run-TryBot+1

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