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std: fix various nilness findings
Found by running $ go run golang.org/x/tools/go/analysis/passes/nilness/cmd/nilness@latest std No actual bugs--other than one panic(nil)--but a few places where error nilness was unclear. Change-Id: Ia916ba30f46f29c1bcf928cc62280169b922463a Reviewed-on: https://go-review.googlesource.com/c/go/+/486675 Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Alan Donovan <adonovan@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Alan Donovan <adonovan@google.com>
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6 changed files with 14 additions and 12 deletions
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@ -268,7 +268,7 @@ type panicReader struct{ panic bool }
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func (r panicReader) Read(p []byte) (int, error) {
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if r.panic {
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panic(nil)
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panic("oops")
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}
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return 0, io.EOF
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}
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