net: rewrite nsswitch.conf parsing to work like other parsers
Seems simpler than having two different parsing mechanisms.
Change-Id: I4f8468bc025f8e03f59ec9c79b17721581b64eed
Reviewed-on: https://go-review.googlesource.com/c/go/+/448855 Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Joedian Reid <joedian@golang.org> Reviewed-by: Damien Neil <dneil@google.com>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
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Auto-Submit: Ian Lance Taylor <iant@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>