Log Message:
Update sysutils/puppet to 3.8.6.

No changelog provided, commits since 3.8.4:
- (doc) Clarify auth_membership
- (PUP-4516) Exit immediately when sent INT or TERM
- (PUP-4516) Add signal name in exit message
- (PUP-4386) Windows group invalid user error msgs
- (PUP-5308) Bump beaker dependency
- (maint) Use beaker's puppet helper
- (maint) Remove obsolete test
- (PUP-5308) Use puppet config set for future parser
- (PUP-5480) Windows dirs should inherit SYSTEM
- Remove skipping based on commit msg
- (PUP-5308) Ensure future parser setting is in main section
- (PUP-5505) Improve performance of reading service plists
- (PUP-5522) Ensure consistency of node environment attr and param
- (PUP-5547) Prevent unnecessary environment eviction
- Revert "(PUP-5547) Prevent unnecessary environment eviction"
- (PUP-5547) Prevent unnecessary environment eviction
- (PUP-5509) Ensure error context for non-numeric index error
- (PUP-5590) Detect duplicate parameter names
- (PUP-5212) Pip package honors HTTP proxy
- (maint) Use Travis container infrastructure
- (maint) Use newer bundler
- Bump ruby version to 2.1.8
- (PUP-1293) Don't ignore status when using upstart provider
- (PUP-5378) acceptance: port all-functions test to 3.x
- (PUP-5378) ensure calling_all_functions works against 4x
- (maint) acceptance-fix with() function usage
- (maint) Relax fqdn_rand regex
- (maint) acceptance: fix calling all functions-split regex
- (PUP-5658) Disallow numeric types with ranges where to < from
- (maint) Update ruby build for windows
- (maint) Change apt_host to apt_signing_server
- (RE-6205) updating ruby for CVE-2015-7551
- (PUP-5670) bump facter release tag