cmd/cgo: avoid extra newline in doc comment of exported function
cmd/cgo: avoid extra newline in doc comment of exported function

Fixes #37722

Change-Id: Ie9154f9d91824558a8ac34ad2fb5bc4e02c64a4b
GitHub-Last-Rev: 9fbe1c1d802287ff3c3ccee62e4e74d802196ffb
GitHub-Pull-Request: golang/go#37723
Reviewed-on: https://go-review.googlesource.com/c/go/+/222419
Run-TryBot: Emmanuel Odeke <277f8eaa8c7dfbc55c17bf5e30561c1a9c45c569@gmail.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: Ian Lance Taylor <87e9c6d529889242b7e184afb632328636553ab4@golang.org>

nawawi/go,CAFxX/go,nawawi/go,CAFxX/go,nawawi/go,golang/go,cloudflare/go,CAFxX/go,nawawi/go,cloudflare/go,golang/go,akutz/go,golang/go,cloudflare/go,CAFxX/go,nawawi/go,akutz/go,cloudflare/go,nawawi/go,akutz/go,cloudflare/go,cloudflare/go,akutz/go,CAFxX/go,cloudflare/go,cloudflare/go,akutz/go,CAFxX/go,golang/go,CAFxX/go,golang/go,golang/go,akutz/go,CAFxX/go,golang/go,akutz/go,golang/go,akutz/go,nawawi/go,nawawi/go