git: rc.subr: Add ${name}_env and ${name}_prepend.

[Sascha Wildner]

commit a512831c9ad09a2356dbf9ee5d5d60ef84cbb985
Author: Michael Neumann <mneumann at ntecs.de>
Date:   Sun Nov 27 22:51:40 2016 +0100

    rc.subr: Add ${name}_env and ${name}_prepend.
    
    ${name}_env is an argument list which will be passed to env(1).
    ${name}_prepend is simply prepended to the command line for $command.
    
    This fixes issues I had with starting up www/h2o as described [here][1].
    
    Taken-From: FreeBSD (commit 77616d41a2ce3744b35e68b8a3c12e562283a322)
    
    [1]: https://github.com/DragonFlyBSD/DeltaPorts/issues/663

Summary of changes:
 etc/rc.subr              | 12 +++++++++++-
 share/man/man8/rc.subr.8 | 14 ++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/a512831c9ad09a2356dbf9ee5d5d60ef84cbb985


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