Compare regexp as string.
Compare regexp as string.

Fix #1633.

natac13/underscore,debutt/underscore,kairyan/underscore,wxmfront/underscore,ThiagoGarciaAlves/underscore,kuychaco/underscore,JonAbrams/underscore,wjb12/underscore,rlugojr/underscore,SeriaWei/underscore,ijidan/underscore,SerenoShen/underscore,jianganglu/underscore,lqjack/underscore,yuhualingfeng/underscore,singhsterabhi/underscore,cintiamh/underscore,irr/underscore,liminghui/underscore,AaronNGray/underscore-server,akre54/underscore,imsingh/underscore,janocat/underscore,lis186/underscore,vinodbonala/underscore,tnga/underscore-es,cintiamh/underscore,beenlee/underscore,cgvarela/underscore,bkillenit/underscore,LiskHQ/underscore,emiel187/underscore,LiskHQ/underscore,lucasfanning/underscore,JoaquinSiabra/underscore,Tim-Zhang/underscore,lucasfanning/underscore,mairasala/underscore,mjhasbach/underscore,vinodbonala/underscore,thiswildorchid/underscore,platinumazure/underscore,roychen-7/underscore,cnwhy/underscore,WangRex/underscore,polandeme/underscore,yekg880809/underscore,natac13/underscore,falqas/underscore,falqas/underscore,oss6/underscore,huangnan1/2016gitStudy,RepmujNetsik/underscore,craigmichaelmartin/underscore,sdwang/underscore,ThiagoGarciaAlves/underscore,singhsterabhi/underscore,SerenoShen/underscore,gougouGet/underscore,zhangguangyong/underscore,documentcloud/underscore,strongconjunctions/underscore,Joanna913/underscore,ElseZhang/underscore,zabefloyd/underscore,Gimcrack/underscore,ijidan/underscore,liyandalmllml/underscore,RepmujNetsik/underscore,ligson/underscore,gougouGet/underscore,mitar/underscore,wjb12/underscore,Gimcrack/underscore,youprofit/underscore,jiankers/underscore,colemakdvorak/underscore,jdelbello/underscore,Yangani/underscore,veg/underscore,elancom/underscore,paulfalgout/underscore,nickkneafsey/underscore,AaronNGray/underscore-server,roychen-7/underscore,dfurtado/underscore,jolthoff/underscore,keepgoingwm/underscore,huzion/underscore,WangRex/underscore,jpalomar/underscore,mjhasbach/underscore,kwangkim/underscore,akre54/underscore,zabefloyd/underscore,ryanwholey/underscore,emiel187/underscore,greyhwndz/underscore,jfarid27/underscore,premkumargithub/underscore,documentcloud/underscore,ereddate/underscore,cgvarela/underscore,polandeme/underscore,dxuehu/underscore,premkumargithub/underscore,kuychaco/underscore,jridgewell/underscore,jridgewell/underscore,jordanwink201/underscore,xiaoqiang730730/underscore,imsingh/underscore,youprofit/underscore,bkillenit/underscore,jonot/underscore,cnwhy/underscore,kwangkim/underscore,thisismygithub/underscore,PUSEN/underscore,snackshen/underscore,eaglesjava/underscore,ElseZhang/underscore,liyandalmllml/underscore,braddunbar/underscore,dxuehu/underscore,ereddate/underscore,jpalomar/underscore,jordanwink201/underscore,ryanwholey/underscore,dyx/underscore,irr/underscore,jolthoff/underscore,Feiyang1/underscore,mdboop/underscore,mitar/underscore,PengShi-sp/underscore,jfarid27/underscore,Forever8/underscore,PengShi-sp/underscore,vincent1988/underscore,SeriaWei/underscore,greyhwndz/underscore,vincent1988/underscore,veg/underscore,Tim-Zhang/underscore,lqjack/underscore,dyx/underscore,huangnan1/2016gitStudy,snackshen/underscore,rlugojr/underscore,craigmichaelmartin/underscore,Yangani/underscore,jianganglu/underscore,jdelbello/underscore,lis186/underscore,aziz-boudi4/underscore,keepgoingwm/underscore,huzion/underscore,mdboop/underscore,yuhualingfeng/underscore,zhangguangyong/underscore,prosenjit-itobuz/underscore,dimitriwalters/underscore,liminghui/underscore,cailong1028/underscore,aziz-boudi4/underscore,PUSEN/underscore,jiankers/underscore,Feiyang1/underscore,nickkneafsey/underscore,JonAbrams/underscore,dfurtado/underscore,kairyan/underscore,wxmfront/underscore,tnga/underscore-es,strongconjunctions/underscore,ligson/underscore,janocat/underscore,megawac/underscore,thiswildorchid/underscore,debutt/underscore,platinumazure/underscore,jashkenas/underscore,jashkenas/underscore,thisismygithub/underscore,dkusch/underscore,mairasala/underscore,JoaquinSiabra/underscore,beenlee/underscore,xiaoqiang730730/underscore,elancom/underscore,sdwang/underscore,prosenjit-itobuz/underscore,oss6/underscore,yekg880809/underscore,eaglesjava/underscore,Joanna913/underscore,colemakdvorak/underscore,jonot/underscore,Forever8/underscore,dkusch/underscore