[atheros] preinit: use grep -q where applicable
authorjow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Mon, 1 Feb 2010 00:34:51 +0000 (00:34 +0000)
committerjow <jow@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Mon, 1 Feb 2010 00:34:51 +0000 (00:34 +0000)
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19482 3c298f89-4303-0410-b956-a3cf2f4a3e73


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