[PATCH v3 2/2] fff-wireless: fix shellcheck errors

[Tim Niemeyer]

In src/packages/fff/fff-wireless/files/lib/functions/fff/wireless line 26:
    local radio="radio$(echo $phy | tr -d -C [0-9])"
                                 ^-- SC2086: Double quote to prevent globbing and word splitting.
                                                 ^-- SC2060: Quote parameters to tr to prevent glob expansion.

Signed-off-by: Tim Niemeyer <tim at tn-x.org>
---

Changes in v3:
- New patch

 src/packages/fff/fff-wireless/files/lib/functions/fff/wireless | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
index a083c13..12dce84 100644
--- a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
+++ b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
@@ -23,7 +23,7 @@ wifiAddPhy() {
 
 	local phy=$1
 	local channel=$2
-	local radio="radio$(echo $phy | tr -d -C [0-9])"
+	local radio="radio$(echo "$phy" | tr -d -C "0-9")"
 	local hwmode="11g"
 	if [ "$channel" -gt "14" ]; then
 		hwmode="11a"
-- 
2.1.4