dahdi_span_types: hush warning of missing attribute
Don't warn when a sysfs attribute does not exist. Signed-off-by: Tzafrir Cohen <tzafrir.cohen@xorcom.com> Acked-By: Russ Meyerriecks <rmeyerriecks@digium.com>
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@ -166,7 +166,7 @@ fi
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# Beware of special characters in attributes
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attr_clean() {
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cat "$1" | tr -d '\n' | tr '!' '/' | tr -c 'a-zA-Z0-9/:.-' '_'
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cat "$1" 2>/dev/null | tr -d '\n' | tr '!' '/' | tr -c 'a-zA-Z0-9/:.-' '_'
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}
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show_spantypes() {
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