arxivdb: fix the authors line before insert
arxivdb: fix the authors line before insert

waqasbhatti/astroph-coffee,waqasbhatti/astroph-coffee,waqasbhatti/astroph-coffee,waqasbhatti/astroph-coffee,waqasbhatti/astroph-coffee,waqasbhatti/astroph-coffee