K 10
svn:author
V 4
ache
K 8
svn:date
V 27
2007-03-29T10:55:33.000000Z
K 7
svn:log
V 498
Fix get_if_var() with 3 args (i.e. with default)

All xxx_<ifname> flags are set to empty strings automatically earlier so
eval echo \${${prefix}${_if}${suffix}-${_default}}
not substitute the default but return just the empty string.
Fix it using
eval echo \${${prefix}${_if}${suffix}:-${_default}}
(i.e. treat empty strings as unset)

The bug manifistates itself with the following warning from checkyesno():
/etc/rc.d/dhclient: WARNING: $background_dhclient is not set properly -
see rc.conf(5)

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