fixed typo: GDKzallo*v*() -> GDKzallo*c*()
fixed typo: GDKzallo*v*() -> GDKzallo*c*()

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb