fix buffer overflow in olsr_wallclock_string()
fix buffer overflow in olsr_wallclock_string()

sauloqueiroz/incremental-spf,diogomg/olsrd-binary-heap,sebkur/olsrd,brabander/olsr,duydb2/olsr,cholin/olsrd,ninuxorg/olsrd,duydb2/olsr,cl4u2/olsrd-wot-pgp,zioproto/olsrd-gsoc2012,acinonyx/olsrd,ralisi/olsrd_cl_roam,acinonyx/olsrd,brabander/olsr,ralisi/olsrd_cl_roam,sebkur/olsrd,diogomg/olsrd,cl4u2/olsrd-wot-pgp,brabander/olsr,diogomg/olsrd,tdz/olsrd,cholin/olsrd,sauloqueiroz/incremental-spf,tdz/olsrd,zioproto/olsrd-gsoc2012,servalproject/olsr,cholin/olsrd,diogomg/olsrd-binary-heap,nolith/olsrd,cl4u2/olsrd-wot-pgp,zioproto/olsrd-gsoc2012,duydb2/olsr,duydb2/olsr,diogomg/olsrd,tdz/olsrd,brabander/olsr,ninuxorg/olsrd,diogomg/olsrd,diogomg/olsrd-binary-heap,ninuxorg/olsrd,zioproto/olsrd,cholin/olsrd,servalproject/olsr,sebkur/olsrd,sauloqueiroz/incremental-spf,diogomg/olsrd-binary-heap,nolith/olsrd,zioproto/olsrd-gsoc2012,diogomg/olsrd,zioproto/olsrd-gsoc2012,sebkur/olsrd,ralisi/olsrd_cl_roam,acinonyx/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd-binary-heap,zioproto/olsrd,sebkur/olsrd,zioproto/olsrd-gsoc2012,diogomg/olsrd,servalproject/olsr,duydb2/olsr,zioproto/olsrd,duydb2/olsr,cholin/olsrd,ninuxorg/olsrd,nolith/olsrd,servalproject/olsr,servalproject/olsr,ninuxorg/olsrd,diogomg/olsrd-binary-heap,sebkur/olsrd,nolith/olsrd,servalproject/olsr,acinonyx/olsrd,zioproto/olsrd,ralisi/olsrd_cl_roam,cl4u2/olsrd-wot-pgp,sauloqueiroz/incremental-spf,tdz/olsrd,diogomg/olsrd,acinonyx/olsrd,nolith/olsrd,cl4u2/olsrd-wot-pgp,tdz/olsrd,duydb2/olsr,duydb2/olsr,zioproto/olsrd