Ignore relation_list nodes with NULL relation for OpenScop printing
Ignore relation_list nodes with NULL relation for OpenScop printing

Haerezis/openscop,ftynse/openscop,realincubus/openscop,BobSaget-Mod/osl-saber,realincubus/openscop,UBERTC/osl,UBERTC/osl,BobSaget-Mod/osl-saber,ftynse/openscop,periscop/openscop,ftynse/openscop,Haerezis/openscop,UBERTC/osl,realincubus/openscop,periscop/openscop,Haerezis/openscop,BobSaget-Mod/osl-saber,periscop/openscop