MFH: r463323

• Update security/strongswan to 5.6.2 [1]
• Enable CURL option by default [2]

PR: 226043 [1], 220488 [2]
Submitted by: strongswan@Nanoteq.com (maintainer) [1]

		karl@denninger.net [2]

Approved by: maintainer [2]
Security: CVE-2018-6459
Sponsored by: Rubicon Communications, LLC (Netgate)
Approved by: ports-secteam (riggs)