mail-client/alpine: use HTTPS

[mm1ke]

Hi,

Another few https fixes.
Please review.

Signed-off-by: Michael Mair-Keimberger m.mairkeimberger@gmail.com

[gentoo-bot]

Copyright policy change

Please note that on 2018-09-15 Trustees have approved new Gentoo copyright policy. All contributions made to Gentoo need to follow this policy. If you include the Signed-off-by line in your commit message, you indicate that you have read the policy and agree to its terms. For more detailed explanation, please see the new Gentoo copyright policy explained article.

Pull Request assignment

Submitter: @mm1ke
Areas affected: ebuilds
Packages affected: mail-client/alpine

mail-client/alpine: @robert7k, @gentoo/net-mail, @gentoo/proxy-maint

Linked bugs

No bugs to link found. If your pull request references any of the Gentoo bug reports, please add appropriate GLEP 66 tags to the commit message and request reassignment.

If you do not receive any reply to this pull request, please open or link a bug to attract the attention of maintainers.

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