unix: fix compile warning
unix: fix compile warning

src/unix/log.c: In function 'olsr_openlog':
src/unix/log.c:56: error: unused parameter 'ident'

Signed-off-by: Ferry Huberts <66e11f9f5d965b69497c7e73d5e808f8b13c1218@pelagic.nl>

diogomg/olsrd,ninuxorg/olsrd,duydb2/olsr,tdz/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,sebkur/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd,servalproject/olsr,diogomg/olsrd-binary-heap,duydb2/olsr,diogomg/olsrd-binary-heap,sebkur/olsrd,nolith/olsrd,acinonyx/olsrd,acinonyx/olsrd,tdz/olsrd,zioproto/olsrd,zioproto/olsrd,servalproject/olsr,duydb2/olsr,servalproject/olsr,ninuxorg/olsrd,sebkur/olsrd,sebkur/olsrd,cholin/olsrd,cholin/olsrd,zioproto/olsrd,cholin/olsrd,ninuxorg/olsrd,cholin/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,sebkur/olsrd,diogomg/olsrd,duydb2/olsr,cholin/olsrd,diogomg/olsrd-binary-heap,nolith/olsrd,zioproto/olsrd,servalproject/olsr,ninuxorg/olsrd,servalproject/olsr,sebkur/olsrd,diogomg/olsrd,duydb2/olsr,nolith/olsrd,zioproto/olsrd,nolith/olsrd,acinonyx/olsrd,diogomg/olsrd-binary-heap,tdz/olsrd,servalproject/olsr,diogomg/olsrd,nolith/olsrd,diogomg/olsrd,tdz/olsrd,acinonyx/olsrd,acinonyx/olsrd,ninuxorg/olsrd,duydb2/olsr,duydb2/olsr,tdz/olsrd