chore(library/relation_manager): fix bogus style warnings
chore(library/relation_manager): fix bogus style warnings

fpvandoorn/lean,fpvandoorn/lean2,digama0/lean,soonhokong/lean-osx,fgdorais/lean,dselsam/lean,dselsam/lean,avigad/lean,rlewis1988/lean,UlrikBuchholtz/lean,fpvandoorn/lean2,dselsam/lean,Kha/lean,fgdorais/lean,soonhokong/lean,dselsam/lean,fpvandoorn/lean,leanprover-community/lean,rlewis1988/lean,levnach/lean,UlrikBuchholtz/lean,soonhokong/lean,leanprover/lean,avigad/lean,Kha/lean,leanprover-community/lean,leanprover/lean,leanprover-community/lean,leanprover-community/lean,soonhokong/lean-osx,digama0/lean,levnach/lean,avigad/lean,rlewis1988/lean,dselsam/lean,leodemoura/lean,soonhokong/lean,soonhokong/lean-windows,fpvandoorn/lean,levnach/lean,javra/lean,leodemoura/lean,leanprover/lean,rlewis1988/lean,leanprover/lean,leodemoura/lean,digama0/lean,digama0/lean,Kha/lean,javra/lean,avigad/lean,johoelzl/lean,soonhokong/lean-windows,soonhokong/lean-windows,leodemoura/lean,fgdorais/lean,fpvandoorn/lean,rlewis1988/lean,fpvandoorn/lean2,javra/lean,leanprover-community/lean,levnach/lean,johoelzl/lean,fpvandoorn/lean,digama0/lean,rlewis1988/lean,avigad/lean,avigad/lean,johoelzl/lean,Kha/lean,javra/lean,soonhokong/lean,UlrikBuchholtz/lean,soonhokong/lean-osx,fgdorais/lean,javra/lean,johoelzl/lean,johoelzl/lean,levnach/lean,Kha/lean,soonhokong/lean,fgdorais/lean,fpvandoorn/lean,leodemoura/lean,Kha/lean,johoelzl/lean,fpvandoorn/lean2,dselsam/lean,soonhokong/lean-windows,soonhokong/lean-windows,leanprover/lean,leanprover-community/lean,fgdorais/lean,digama0/lean,UlrikBuchholtz/lean,fpvandoorn/lean2,leodemoura/lean,soonhokong/lean-osx,soonhokong/lean-osx,leanprover/lean,UlrikBuchholtz/lean