list: exclude Homebrew logs from unbrewed
list: exclude Homebrew logs from unbrewed

Treat it like the cache, i.e., if the logs directory is inside the
Homebrew prefix, skip it instead of listing all the logs.

This avoids spurious output in `brew list --unbrewed` when the Homebrew
logs directory is a subdirectory of the Homebrew prefix.

drewwells/homebrew,sjackman/linuxbrew,influxdb/homebrew,sjackman/linuxbrew,scorphus/homebrew,dgageot/homebrew,3van/homebrew,treyharris/homebrew,cprecioso/homebrew,LinusU/homebrew,marcwebbie/homebrew,saketkc/linuxbrew,ExtremeMan/homebrew,nandub/homebrew,haihappen/homebrew,redpen-cc/homebrew,zchee/homebrew,jarrettmeyer/homebrew,Angeldude/linuxbrew,base10/homebrew,influxdb/homebrew,sakra/homebrew,cprecioso/homebrew,optikfluffel/homebrew,base10/homebrew,bigbes/homebrew,osimola/homebrew,Red54/homebrew,keith/homebrew,dplarson/homebrew,elyscape/homebrew,arnested/homebrew,mobileoverlord/homebrew-1,osimola/homebrew,dutchcoders/homebrew,apjanke/homebrew,decors/homebrew,dongcarl/homebrew,dericed/homebrew,skinny-framework/homebrew,drbenmorgan/linuxbrew,theeternalsw0rd/homebrew,sakra/homebrew,Asuranceturix/homebrew,DoomHammer/linuxbrew,tschoonj/homebrew,ExtremeMan/homebrew,utzig/homebrew,dutchcoders/homebrew,bukzor/linuxbrew,recruit-tech/homebrew,AlexejK/homebrew,mmizutani/homebrew,kevinastone/homebrew,reelsense/homebrew,skinny-framework/homebrew,reelsense/homebrew,yazuuchi/homebrew,mobileoverlord/homebrew-1,cosmo0920/homebrew,influxdata/homebrew,iandennismiller/homebrew,elgertam/homebrew,filcab/homebrew,MartinDelille/homebrew,ablyler/homebrew,yumitsu/homebrew,frodeaa/homebrew,dplarson/homebrew,ablyler/homebrew,influxdb/homebrew,ento/homebrew,SteveClement/homebrew,dgageot/homebrew,teslamint/homebrew,pdxdan/homebrew,Asuranceturix/homebrew,scpeters/homebrew,LinusU/homebrew,frodeaa/homebrew,feelpp/homebrew,kenips/homebrew,alebcay/homebrew,princeofdarkness76/homebrew,Chilledheart/homebrew,georgschoelly/homebrew,sometimesfood/homebrew,miketheman/homebrew,mactkg/homebrew,menivaitsi/homebrew,iostat/homebrew2,3van/homebrew,benjaminfrank/homebrew,emcrisostomo/homebrew,jconley/homebrew,treyharris/homebrew,knpwrs/homebrew,vigo/homebrew,dalanmiller/homebrew,bigbes/homebrew,cscetbon/homebrew,ebouaziz/linuxbrew,totalvoidness/homebrew,deorth/homebrew,jarrettmeyer/homebrew,keith/homebrew,miketheman/homebrew,DoomHammer/linuxbrew,TaylorMonacelli/homebrew,benjaminfrank/homebrew,kenips/homebrew,danieroux/homebrew,Homebrew/linuxbrew,gawbul/homebrew,cscetbon/homebrew,youtux/homebrew,Chilledheart/homebrew,josa42/homebrew,muellermartin/homebrew,ilovezfs/homebrew,michaKFromParis/homebrew-sparks,sferik/homebrew,SuperNEMO-DBD/cadfaelbrew,saketkc/linuxbrew,joshfriend/homebrew,johanhammar/homebrew,MoSal/homebrew,booi/homebrew,filcab/homebrew,influxdata/homebrew,bigbes/homebrew,lrascao/homebrew,decors/homebrew,retrography/homebrew,vigo/homebrew,afh/homebrew,quantumsteve/homebrew,cscetbon/homebrew,alebcay/homebrew,getgauge/homebrew,MoSal/homebrew,Homebrew/linuxbrew,skinny-framework/homebrew,jarrettmeyer/homebrew,dalanmiller/homebrew,cosmo0920/homebrew,DoomHammer/linuxbrew,esamson/homebrew,recruit-tech/homebrew,ebouaziz/linuxbrew,SteveClement/homebrew,yazuuchi/homebrew,benjaminfrank/homebrew,reelsense/linuxbrew,slyphon/homebrew,menivaitsi/homebrew,sometimesfood/homebrew,gawbul/homebrew,feelpp/homebrew,AlexejK/homebrew,jsjohnst/homebrew,galaxy001/homebrew,gicmo/homebrew,OJFord/homebrew,Homebrew/homebrew,alebcay/homebrew,deorth/homebrew,cprecioso/homebrew,getgauge/homebrew,tschoonj/homebrew,johanhammar/homebrew,chadcatlett/homebrew,reelsense/linuxbrew,arnested/homebrew,esamson/homebrew,LinusU/homebrew,influxdb/homebrew,tutumcloud/homebrew,quantumsteve/homebrew,adamliter/homebrew,johanhammar/homebrew,ento/homebrew,gnubila-france/linuxbrew,skatsuta/homebrew,pdxdan/homebrew,hongkongkiwi/homebrew,yazuuchi/homebrew,Asuranceturix/homebrew,pcottle/homebrew,jsjohnst/homebrew,treyharris/homebrew,haihappen/homebrew,drewwells/homebrew,ralic/homebrew,cosmo0920/homebrew,mactkg/homebrew,Asuranceturix/homebrew,retrography/homebrew,dericed/homebrew,dericed/homebrew,skatsuta/homebrew,dunn/homebrew,ento/homebrew,brunchboy/homebrew,royhodgman/homebrew,ybott/homebrew,apjanke/homebrew,sometimesfood/homebrew,totalvoidness/homebrew,mactkg/homebrew,sakra/homebrew,brunchboy/homebrew,jsjohnst/homebrew,zchee/homebrew,princeofdarkness76/homebrew,afh/homebrew,danieroux/homebrew,georgschoelly/homebrew,hanxue/homebrew,sakra/homebrew,hakamadare/homebrew,Homebrew/homebrew,royhodgman/homebrew,mkrapp/homebrew,BrewTestBot/homebrew,michaKFromParis/homebrew-sparks,galaxy001/homebrew,scpeters/homebrew,reelsense/linuxbrew,iandennismiller/homebrew,sjackman/linuxbrew,bigbes/homebrew,ryanfb/homebrew,dericed/homebrew,ear/homebrew,filcab/homebrew,skatsuta/homebrew,totalvoidness/homebrew,knpwrs/homebrew,hongkongkiwi/homebrew,redpen-cc/homebrew,lrascao/homebrew,utzig/homebrew,hongkongkiwi/homebrew,tutumcloud/homebrew,chadcatlett/homebrew,utzig/homebrew,influxdata/homebrew,optikfluffel/homebrew,BrewTestBot/homebrew,deorth/homebrew,pcottle/homebrew,ralic/homebrew,ralic/homebrew,booi/homebrew,haihappen/homebrew,decors/homebrew,Homebrew/linuxbrew,ebouaziz/linuxbrew,totalvoidness/homebrew,SteveClement/homebrew,gicmo/homebrew,mkrapp/homebrew,iostat/homebrew2,reelsense/homebrew,dunn/homebrew,emcrisostomo/homebrew,quantumsteve/homebrew,Angeldude/linuxbrew,drewwells/homebrew,jarrettmeyer/homebrew,nandub/homebrew,hanxue/homebrew,dgageot/homebrew,thinker0/homebrew,skinny-framework/homebrew,gicmo/homebrew,teslamint/homebrew,afh/homebrew,MartinDelille/homebrew,arnested/homebrew,adamliter/homebrew,galaxy001/homebrew,dunn/homebrew,princeofdarkness76/homebrew,liamstask/homebrew,Linuxbrew/linuxbrew,dutchcoders/homebrew,princeofdarkness76/homebrew,miketheman/homebrew,tschoonj/homebrew,pdxdan/homebrew,ExtremeMan/homebrew,kevinastone/homebrew,filcab/homebrew,jsjohnst/homebrew,hakamadare/homebrew,ybott/homebrew,elgertam/homebrew,josa42/homebrew,joshfriend/homebrew,TaylorMonacelli/homebrew,frodeaa/homebrew,liamstask/homebrew,ryanfb/homebrew,gicmo/homebrew,recruit-tech/homebrew,skatsuta/homebrew,tschoonj/homebrew,treyharris/homebrew,drbenmorgan/linuxbrew,polishgeeks/homebrew,MoSal/homebrew,jamer/homebrew,Chilledheart/homebrew,theeternalsw0rd/homebrew,brunchboy/homebrew,MartinDelille/homebrew,eighthave/homebrew,apjanke/homebrew,nandub/homebrew,base10/homebrew,Asuranceturix/homebrew,cosmo0920/homebrew,marcwebbie/homebrew,SuperNEMO-DBD/cadfaelbrew,iostat/homebrew2,drbenmorgan/linuxbrew,Linuxbrew/linuxbrew,bukzor/linuxbrew,muellermartin/homebrew,kevinastone/homebrew,vigo/homebrew,youtux/homebrew,sferik/homebrew,slyphon/homebrew,feelpp/homebrew,slyphon/homebrew,dongcarl/homebrew,ento/homebrew,Homebrew/homebrew,sferik/homebrew,ablyler/homebrew,youtux/homebrew,liamstask/homebrew,TaylorMonacelli/homebrew,theeternalsw0rd/homebrew,osimola/homebrew,hakamadare/homebrew,knpwrs/homebrew,mactkg/homebrew,nandub/homebrew,kodabb/homebrew,menivaitsi/homebrew,hakamadare/homebrew,retrography/homebrew,arnested/homebrew,polishgeeks/homebrew,elgertam/homebrew,apjanke/homebrew,ryanfb/homebrew,marcwebbie/homebrew,ybott/homebrew,optikfluffel/homebrew,BrewTestBot/homebrew,dutchcoders/homebrew,jconley/homebrew,MartinDelille/homebrew,scorphus/homebrew,feelpp/homebrew,scorphus/homebrew,tutumcloud/homebrew,sometimesfood/homebrew,adamliter/homebrew,LinusU/homebrew,DoomHammer/linuxbrew,recruit-tech/homebrew,reelsense/linuxbrew,SuperNEMO-DBD/cadfaelbrew,ilovezfs/homebrew,frodeaa/homebrew,MoSal/homebrew,3van/homebrew,mobileoverlord/homebrew-1,jamer/homebrew,lrascao/homebrew,pcottle/homebrew,chadcatlett/homebrew,redpen-cc/homebrew,dgageot/homebrew,yumitsu/homebrew,Linuxbrew/linuxbrew,OJFord/homebrew,AlexejK/homebrew,getgauge/homebrew,ilovezfs/homebrew,mkrapp/homebrew,gnubila-france/linuxbrew,eighthave/homebrew,liamstask/homebrew,elyscape/homebrew,saketkc/linuxbrew,dunn/homebrew,ryanfb/homebrew,ear/homebrew,tutumcloud/homebrew,afh/homebrew,elyscape/homebrew,jconley/homebrew,hongkongkiwi/homebrew,kodabb/homebrew,TaylorMonacelli/homebrew,galaxy001/homebrew,ilovezfs/homebrew,teslamint/homebrew,polishgeeks/homebrew,royhodgman/homebrew,pcottle/homebrew,jconley/homebrew,Red54/homebrew,vigo/homebrew,bukzor/linuxbrew,thinker0/homebrew,teslamint/homebrew,SteveClement/homebrew,getgauge/homebrew,jamer/homebrew,kevinastone/homebrew,muellermartin/homebrew,3van/homebrew,redpen-cc/homebrew,osimola/homebrew,Linuxbrew/linuxbrew,hanxue/homebrew,saketkc/linuxbrew,Red54/homebrew,georgschoelly/homebrew,drewwells/homebrew,elyscape/homebrew,gnubila-france/linuxbrew,ybott/homebrew,BrewTestBot/homebrew,dickeyxxx/homebrew,scpeters/homebrew,base10/homebrew,yazuuchi/homebrew,gawbul/homebrew,drbenmorgan/linuxbrew,utzig/homebrew,OJFord/homebrew,ablyler/homebrew,pdxdan/homebrew,eighthave/homebrew,keith/homebrew,mmizutani/homebrew,dongcarl/homebrew,josa42/homebrew,Angeldude/linuxbrew,johanhammar/homebrew,bukzor/linuxbrew,Homebrew/linuxbrew,mmizutani/homebrew,optikfluffel/homebrew,ebouaziz/linuxbrew,iandennismiller/homebrew,kodabb/homebrew,dongcarl/homebrew,joshfriend/homebrew,pcottle/homebrew,kenips/homebrew,alebcay/homebrew,booi/homebrew,emcrisostomo/homebrew,Homebrew/homebrew,quantumsteve/homebrew,slyphon/homebrew,dickeyxxx/homebrew,iostat/homebrew2,dickeyxxx/homebrew,menivaitsi/homebrew,zchee/homebrew,influxdata/homebrew,AlexejK/homebrew,danieroux/homebrew,mmizutani/homebrew,SteveClement/homebrew,ralic/homebrew,michaKFromParis/homebrew-sparks,cprecioso/homebrew,sjackman/linuxbrew,thinker0/homebrew,decors/homebrew,gnubila-france/linuxbrew,elgertam/homebrew,yumitsu/homebrew,OJFord/homebrew,danieroux/homebrew,hanxue/homebrew,royhodgman/homebrew,scpeters/homebrew,eighthave/homebrew,zchee/homebrew,Chilledheart/homebrew,haihappen/homebrew,ear/homebrew,georgschoelly/homebrew,kodabb/homebrew,iandennismiller/homebrew,emcrisostomo/homebrew,dickeyxxx/homebrew,dalanmiller/homebrew,kenips/homebrew,knpwrs/homebrew,theeternalsw0rd/homebrew,esamson/homebrew,reelsense/homebrew,keith/homebrew,ear/homebrew,Angeldude/linuxbrew,dplarson/homebrew,ExtremeMan/homebrew,thinker0/homebrew,polishgeeks/homebrew,scorphus/homebrew,marcwebbie/homebrew,mobileoverlord/homebrew-1,esamson/homebrew,jamer/homebrew,youtux/homebrew,retrography/homebrew,sferik/homebrew,brunchboy/homebrew,benjaminfrank/homebrew,dplarson/homebrew,muellermartin/homebrew,miketheman/homebrew,adamliter/homebrew,dalanmiller/homebrew,Red54/homebrew,SuperNEMO-DBD/cadfaelbrew