FreeBSD_stable_10 - Build #1915 - Fixed

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FreeBSD_stable_10 - Build #1915 - Fixed:

Build information: https://jenkins.FreeBSD.org/job/FreeBSD_stable_10/1915/
Full change log: https://jenkins.FreeBSD.org/job/FreeBSD_stable_10/1915/changes
Full build log: https://jenkins.FreeBSD.org/job/FreeBSD_stable_10/1915/console

Change summaries:

292968 by jamie:
MFC r287220:

  Fix a conversion error in rc.d/jail

292967 by jamie:
MFC r292759:

  Let old-style (shell-based) jail configuration handle jail names that
  contain characters not allowed in a shell variable (such as "-").
  These will be replaced by an underscore in jail config variables,
  e.g. for jail "foo-bar" you would set "jail_foo_bar_hostname".

  This is separate from the current code that changes the jail names
  if they contain "." or "/".  It also doesn't apply to jails defined
  in a jail.conf file.

PR:		191181