git: Move gcc47's -Wunused-but-set-{parameter, variable} to WARNS >= 4.

[Sascha Wildner <swildner@xxxxxxxxxxxxxxxxxxxxxxx>]

commit c0b7aaeb900f0be8f97f7c58d67b4765b137ef5e
Author: Sascha Wildner <saw@online.de>
Date:   Fri Oct 19 10:43:55 2012 +0200

    Move gcc47's -Wunused-but-set-{parameter,variable} to WARNS >= 4.
    
    It's not really important stuff that they uncover.
    
    Also, -Wunused-parameter is added at >= 4 too.

Summary of changes:
 share/mk/bsd.sys.mk |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/c0b7aaeb900f0be8f97f7c58d67b4765b137ef5e


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