Give the same error message for wrong password and no such user
Give the same error message for wrong password and no such user

It's a bad idea to leak information about valid users, so we try not
to do that.  Fixes CHEF-822

baberthal/chef,lamont-granquist/chef,paulmooring/chef,brettcave/chef,Kast0rTr0y/chef,natewalck/chef,GabKlein/chef-merged,mikedodge04/chef,josb/chef,andrewpsp/chef,nsdavidson/chef,ktpan/chef-play,kamaradclimber/chef,coderanger/chef,mikedodge04/chef,MichaelPereira/chef,mattray/chef,ckaushik/chef,paulmooring/chef,grubernaut/chef,ShadySQL/chef-merged,evan2645/chef,jimmymccrory/chef,b002368/chef-repo,nguyen-tien-mulodo/chef,josb/chef,opsengine/chef,higanworks/chef,nsdavidson/chef,EasonYi/chef,gene1wood/chef,sometimesfood/chef,karthikrev/chef,permyakovsv/chef,sempervictus/chef,ccsplit/chef,coderanger/chef,faspl/chef,brettcave/chef,martinisoft/chef,jagdeesh109/chef,nicklv/chef,martinb3/chef,jaymzh/chef,kamaradclimber/chef,jhulten/chef,swalberg/chef,skmichaelson/chef,Igorshp/chef,ktpan/chef-play,cmluciano/chef,Igorshp/chef,jaymzh/chef,criteo-forks/chef,nicklv/chef,strangelittlemonkey/chef,sysbot/chef,zuazo-forks/chef,jonlives/chef,acaiafa/chef,hfichter/chef,sideci-sample/sideci-sample-chef,tbriggs-curse/chef,robmul/chef,smurawski/chef,ducthanh/chef,mal/chef,danielsdeleo/seth,b002368/chef-repo,jimmymccrory/chef,jkerry/chef,MichaelPereira/chef,coderanger/chef,joyent/chef,sometimesfood/chef,jagdeesh109/chef,EasonYi/chef,youngjl1/chef,acaiafa/chef,cachamber/chef,aaron-lane/chef,DeWaRs1206/chef,mio-g/chef,zuazo-forks/chef,SUSE-Cloud/chef,onlyhavecans/chef,nvwls/chef,Tensibai/chef,zshuo/chef,swalberg/chef,askl56/chef,ccsplit/chef,baberthal/chef,jhulten/chef,h4ck3rm1k3/chef,paulmooring/chef,zuazo-forks/chef,nalingarg2/chef-1,grubernaut/chef,tbunnyman/chef,josb/chef,jkerry/chef,ducthanh/chef,mikefaille/chef,oclaussen/chef,martinb3/chef,ktpan/chef-play,nicklv/chef,nellshamrell/chef,mattray/chef,h4ck3rm1k3/chef,ccope/chef,criteo-forks/chef,cachamber/chef,juliandunn/chef,strangelittlemonkey/chef,custora/chef,sekrett/chef,polamjag/chef,davestarling/chef,MichaelPereira/chef,webframp/chef,AndyBoucher/Chef-Testing,h4ck3rm1k3/chef,joemiller/chef,pblittle/chef,ccsplit/chef,grubernaut/chef,josb/chef,oclaussen/chef,GabKlein/chef-merged,Ppjet6/chef,someara/chef,custora/chef,chef/chef,sanditiffin/chef,MsysTechnologiesllc/chef,jblaine/chef,nicklv/chef,adamleff/chef,nguyen-tien-mulodo/chef,b002368/chef-repo,jordane/chef,legal90/chef,baberthal/chef,higanworks/chef,paulmooring/chef,adamleff/chef,martinb3/chef,Tensibai/chef,AndyBoucher/Chef-Testing,patcon/chef,jimmymccrory/chef,nellshamrell/chef,mikefaille/chef,evan2645/chef,tbunnyman/chef,kisoku/chef,mal/chef,sysbot/chef,nvwls/chef,strangelittlemonkey/chef,jblaine/chef,nathwill/chef,robmul/chef,juliandunn/chef,Igorshp/chef,SUSE-Cloud/chef,bahamas10/chef,smurawski/chef,ShadySQL/chef-merged,BackSlasher/chef,joemiller/chef,pburkholder/chef,OpSitters/chef,ranjib/chef,jagdeesh109/chef,tbunnyman/chef,jonlives/chef,tbunnyman/chef,josb/chef,grubernaut/chef,ducthanh/chef,someara/chef,renanvicente/chef,3dinfluence/chef,smurawski/chef,baberthal/chef,custora/chef,evan2645/chef,webframp/chef,sysbot/chef,Kast0rTr0y/chef,skmichaelson/chef,oclaussen/chef,MichaelPereira/chef,clintoncwolfe/chef,ranjib/chef,ktpan/chef-play,sempervictus/chef,nalingarg2/chef-1,nsdavidson/chef,AndyBoucher/Chef-Testing,skmichaelson/chef,Igorshp/chef,ccsplit/chef,nvwls/chef,MichaelPereira/chef,circleback/chef,gene1wood/chef,joemiller/chef,jkerry/chef,higanworks/chef,sekrett/chef,jsierles/chef,antonifs/chef,andrewpsp/chef,renanvicente/chef,gsaslis/chef,legal90/chef,ChaosCloud/chef,circleback/chef,erkolson/chef,nsdavidson/chef,jsierles/chef,kaznishi/chef,martinisoft/chef,brettcave/chef,DeWaRs1206/chef,cmluciano/chef,aaron-lane/chef,legal90/chef,ducthanh/chef,criteo-forks/chef,tomdoherty/chef,DeWaRs1206/chef,mal/chef,cachamber/chef,paulmooring/chef,BackSlasher/chef,jordane/chef,opsengine/chef,mikedodge04/chef,skmichaelson/chef,webframp/chef,cmluciano/chef,h4ck3rm1k3/chef,tbriggs-curse/chef,youngjl1/chef,davestarling/chef,nguyen-tien-mulodo/chef,jimmymccrory/chef,andrewpsp/chef,jordane/chef,karthikrev/chef,antonifs/chef,jk47/chef,criteo-forks/chef,hfichter/chef,ekometti/chef,sysbot/chef,ranjib/chef,jagdeesh109/chef,ducthanh/chef,Ppjet6/chef,tas50/chef-1,criteo-forks/chef,mal/chef,tbunnyman/chef,ChaosCloud/chef,DeWaRs1206/chef,OpSitters/chef,webframp/chef,zshuo/chef,nguyen-tien-mulodo/chef,hfichter/chef,ranjib/chef,OpSitters/chef,Kast0rTr0y/chef,sekrett/chef,ekometti/chef,malisettirammurthy/chef,docwhat/chef,sysbot/chef,custora/chef,nvwls/chef,oclaussen/chef,mikefaille/chef,nathwill/chef,gsaslis/chef,malisettirammurthy/chef,jagdeesh109/chef,nicklv/chef,pburkholder/chef,EasonYi/chef,aspiers/chef,antonifs/chef,patcon/chef,permyakovsv/chef,adamleff/chef,sometimesfood/chef,kaznishi/chef,Tensibai/chef,karthikrev/chef,davestarling/chef,kisoku/chef,kaznishi/chef,erkolson/chef,pburkholder/chef,aaron-lane/chef,BackSlasher/chef,malisettirammurthy/chef,h4ck3rm1k3/chef,sekrett/chef,danielsdeleo/seth,cgvarela/chef,lamont-granquist/chef,karthikrev/chef,OpSitters/chef,pblittle/chef,Kast0rTr0y/chef,oclaussen/chef,sempervictus/chef,erkolson/chef,sideci-sample/sideci-sample-chef,malisettirammurthy/chef,nellshamrell/chef,MsysTechnologiesllc/chef,mio-g/chef,pblittle/chef,EasonYi/chef,ckaushik/chef,joemiller/chef,sometimesfood/chef,nvwls/chef,jk47/chef,lamont-granquist/chef,jsierles/chef,jkerry/chef,ranjib/chef,onlyhavecans/chef,nellshamrell/chef,DeWaRs1206/chef,chef/chef,aspiers/chef,martinisoft/chef,tas50/chef-1,davestarling/chef,kisoku/chef,acaiafa/chef,AndyBoucher/Chef-Testing,ekometti/chef,jblaine/chef,ChaosCloud/chef,pburkholder/chef,bahamas10/chef,docwhat/chef,GabKlein/chef-merged,ShadySQL/chef-merged,lamont-granquist/chef,sideci-sample/sideci-sample-chef,kisoku/chef,custora/chef,Ppjet6/chef,swalberg/chef,jk47/chef,cachamber/chef,ChaosCloud/chef,zshuo/chef,nalingarg2/chef-1,webframp/chef,lamont-granquist/chef,aaron-lane/chef,brettcave/chef,GabKlein/chef-merged,kamaradclimber/chef,tbunnyman/chef,swalberg/chef,jonlives/chef,aspiers/chef,youngjl1/chef,aaron-lane/chef,ducthanh/chef,3dinfluence/chef,nathwill/chef,SUSE-Cloud/chef,cachamber/chef,erkolson/chef,jk47/chef,renanvicente/chef,b002368/chef-repo,patcon/chef,joemiller/chef,martinb3/chef,youngjl1/chef,nalingarg2/chef-1,pblittle/chef,patcon/chef,polamjag/chef,jmhardison/chef,erkolson/chef,ChaosCloud/chef,jonlives/chef,h4ck3rm1k3/chef,ChaosCloud/chef,jagdeesh109/chef,polamjag/chef,jkerry/chef,renanvicente/chef,natewalck/chef,webframp/chef,nguyen-tien-mulodo/chef,sanditiffin/chef,gsaslis/chef,tas50/chef-1,jmhardison/chef,docwhat/chef,DeWaRs1206/chef,someara/chef,evan2645/chef,tbriggs-curse/chef,sempervictus/chef,martinb3/chef,natewalck/chef,cachamber/chef,nvwls/chef,skmichaelson/chef,jonlives/chef,nathwill/chef,askl56/chef,acaiafa/chef,docwhat/chef,coderanger/chef,3dinfluence/chef,Igorshp/chef,jblaine/chef,natewalck/chef,sometimesfood/chef,mattray/chef,faspl/chef,ShadySQL/chef-merged,EasonYi/chef,OpSitters/chef,docwhat/chef,jblaine/chef,ShadySQL/chef-merged,andrewpsp/chef,davestarling/chef,jk47/chef,jmhardison/chef,nalingarg2/chef-1,legal90/chef,clintoncwolfe/chef,bahamas10/chef,onlyhavecans/chef,sanditiffin/chef,jordane/chef,faspl/chef,permyakovsv/chef,malisettirammurthy/chef,grubernaut/chef,cgvarela/chef,BackSlasher/chef,opsengine/chef,nicklv/chef,tomdoherty/chef,ktpan/chef-play,joyent/chef,skmichaelson/chef,karthikrev/chef,jimmymccrory/chef,Kast0rTr0y/chef,Ppjet6/chef,mattray/chef,BackSlasher/chef,martinisoft/chef,mattray/chef,ekometti/chef,brettcave/chef,strangelittlemonkey/chef,natewalck/chef,faspl/chef,bahamas10/chef,jhulten/chef,askl56/chef,3dinfluence/chef,tas50/chef-1,acaiafa/chef,kaznishi/chef,juliandunn/chef,jblaine/chef,zshuo/chef,ckaushik/chef,chef/chef,jk47/chef,faspl/chef,ccope/chef,sometimesfood/chef,lamont-granquist/chef,renanvicente/chef,polamjag/chef,joyent/chef,tbriggs-curse/chef,andrewpsp/chef,smurawski/chef,nathwill/chef,robmul/chef,askl56/chef,mikedodge04/chef,someara/chef,pburkholder/chef,smurawski/chef,mio-g/chef,natewalck/chef,polamjag/chef,hfichter/chef,zuazo-forks/chef,danielsdeleo/seth,sanditiffin/chef,nellshamrell/chef,ckaushik/chef,mikefaille/chef,mio-g/chef,ranjib/chef,juliandunn/chef,youngjl1/chef,opsengine/chef,MsysTechnologiesllc/chef,joyent/chef,jaymzh/chef,tomdoherty/chef,mio-g/chef,circleback/chef,someara/chef,opsengine/chef,evan2645/chef,nalingarg2/chef-1,malisettirammurthy/chef,b002368/chef-repo,zshuo/chef,cgvarela/chef,cgvarela/chef,sempervictus/chef,b002368/chef-repo,Tensibai/chef,jkerry/chef,antonifs/chef,jhulten/chef,robmul/chef,cgvarela/chef,martinisoft/chef,gene1wood/chef,karthikrev/chef,ccsplit/chef,renanvicente/chef,ktpan/chef-play,josb/chef,jsierles/chef,joemiller/chef,kaznishi/chef,nsdavidson/chef,jmhardison/chef,nsdavidson/chef,adamleff/chef,oclaussen/chef,jonlives/chef,3dinfluence/chef,youngjl1/chef,ccope/chef,Igorshp/chef,adamleff/chef,kaznishi/chef,cmluciano/chef,OpSitters/chef,mikedodge04/chef,grubernaut/chef,sideci-sample/sideci-sample-chef,sanditiffin/chef,sekrett/chef,cmluciano/chef,tomdoherty/chef,MichaelPereira/chef,evan2645/chef,paulmooring/chef,Ppjet6/chef,danielsdeleo/seth,danielsdeleo/seth,mikefaille/chef,joyent/chef,baberthal/chef,Ppjet6/chef,onlyhavecans/chef,SUSE-Cloud/chef,juliandunn/chef,jmhardison/chef,tbriggs-curse/chef,jimmymccrory/chef,permyakovsv/chef,faspl/chef,legal90/chef,clintoncwolfe/chef,strangelittlemonkey/chef,Tensibai/chef,chef/chef,3dinfluence/chef,bahamas10/chef,ckaushik/chef,antonifs/chef,SUSE-Cloud/chef,criteo-forks/chef,legal90/chef,patcon/chef,askl56/chef,baberthal/chef,nguyen-tien-mulodo/chef,tbriggs-curse/chef,clintoncwolfe/chef,onlyhavecans/chef,mal/chef,hfichter/chef,acaiafa/chef,mwrock/chef,antonifs/chef,kisoku/chef,aaron-lane/chef,robmul/chef,aspiers/chef,askl56/chef,aspiers/chef,nathwill/chef,gsaslis/chef,MsysTechnologiesllc/chef,BackSlasher/chef,kamaradclimber/chef,ckaushik/chef,circleback/chef,gsaslis/chef,zshuo/chef,mikefaille/chef,nellshamrell/chef,ekometti/chef,higanworks/chef,jaymzh/chef,jordane/chef,swalberg/chef,erkolson/chef,circleback/chef,andrewpsp/chef,mikedodge04/chef,smurawski/chef,higanworks/chef,sempervictus/chef,robmul/chef,someara/chef,Kast0rTr0y/chef,ccope/chef,clintoncwolfe/chef,sideci-sample/sideci-sample-chef,permyakovsv/chef,ekometti/chef,tomdoherty/chef,ccsplit/chef,gsaslis/chef,polamjag/chef,zuazo-forks/chef,patcon/chef,circleback/chef,clintoncwolfe/chef,docwhat/chef,mio-g/chef,SUSE-Cloud/chef,mwrock/chef,martinb3/chef,mal/chef,jmhardison/chef,brettcave/chef,swalberg/chef,AndyBoucher/Chef-Testing,mwrock/chef,bahamas10/chef,mwrock/chef,adamleff/chef,AndyBoucher/Chef-Testing,onlyhavecans/chef,pburkholder/chef,permyakovsv/chef,cgvarela/chef,gene1wood/chef,sekrett/chef,EasonYi/chef,ccope/chef,custora/chef,zuazo-forks/chef,sanditiffin/chef,strangelittlemonkey/chef