[Merge] ~liushuyu-011/ubuntu-seeds/+git/ubuntu:mantic into ~ubuntu-core-dev/ubuntu-seeds/+git/ubuntu:mantic

[Steve Langasek]

Review: Disapprove

Other dh-* packages supported for development, including dh-golang, are included in lp:~ubuntu-core-dev/ubuntu-seeds/+git/platform supported-development-common.  Let's seed this there instead.
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https://code.launchpad.net/~liushuyu-011/ubuntu-seeds/+git/ubuntu/+merge/452033
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