pud: fix resource leak
pud: fix resource leak

Coverity:
CID 739679 (#1 of 1): Resource leak (RESOURCE_LEAK)
At (24): Variable "fd" going out of scope leaks the storage it points to.

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

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