fix(library/tactic/inversion_tactic): bug in name generation
fix(library/tactic/inversion_tactic): bug in name generation

avigad/lean,avigad/lean,digama0/lean,leanprover-community/lean,eigengrau/lean,eigengrau/lean,htzh/lean,leanprover/lean,leodemoura/lean,soonhokong/lean-windows,soonhokong/lean-osx,Kha/lean,soonhokong/lean-osx,htzh/lean,Kha/lean,dselsam/lean,fpvandoorn/lean2,javra/lean,UlrikBuchholtz/lean,fpvandoorn/lean,javra/lean,fpvandoorn/lean2,leanprover-community/lean,leanprover/lean,eigengrau/lean,eigengrau/lean,javra/lean,javra/lean,Kha/lean,leanprover-community/lean,johoelzl/lean,levnach/lean,digama0/lean,levnach/lean,leanprover/lean,leanprover/lean,johoelzl/lean,leanprover/lean,fpvandoorn/lean2,fpvandoorn/lean,fpvandoorn/lean,leodemoura/lean,c-cube/lean,UlrikBuchholtz/lean,johoelzl/lean,levnach/lean,fpvandoorn/lean,soonhokong/lean,digama0/lean,c-cube/lean,htzh/lean,soonhokong/lean,avigad/lean,sp3ctum/lean,digama0/lean,fgdorais/lean,fpvandoorn/lean,Kha/lean,johoelzl/lean,fpvandoorn/lean2,c-cube/lean,sp3ctum/lean,rlewis1988/lean,rlewis1988/lean,fgdorais/lean,dselsam/lean,rlewis1988/lean,soonhokong/lean-osx,leanprover/lean,sp3ctum/lean,soonhokong/lean-windows,soonhokong/lean-windows,UlrikBuchholtz/lean,dselsam/lean,rlewis1988/lean,avigad/lean,UlrikBuchholtz/lean,avigad/lean,c-cube/lean,leodemoura/lean,soonhokong/lean-osx,leanprover-community/lean,soonhokong/lean-windows,leodemoura/lean,c-cube/lean,levnach/lean,leanprover-community/lean,fpvandoorn/lean2,sp3ctum/lean,dselsam/lean,soonhokong/lean,levnach/lean,leodemoura/lean,rlewis1988/lean,dselsam/lean,eigengrau/lean,leanprover-community/lean,soonhokong/lean-osx,fgdorais/lean,UlrikBuchholtz/lean,avigad/lean,htzh/lean,Kha/lean,leodemoura/lean,fgdorais/lean,fpvandoorn/lean,digama0/lean,fgdorais/lean,soonhokong/lean,soonhokong/lean-windows,johoelzl/lean,fgdorais/lean,sp3ctum/lean,johoelzl/lean,rlewis1988/lean,Kha/lean,soonhokong/lean,dselsam/lean,digama0/lean,javra/lean,htzh/lean