RSS: Don't add trailing '/' to post image
RSS: Don't add trailing '/' to post image

Closes #4888

We automatically added a trailing slash to all non-absolute paths in
RSS, including post images. This fix ensures that trailing slashes
aren’t added to absolute paths including ‘content/images/‘.

stridespace/Ghost,shannonshsu/Ghost,sunh3/Ghost,jamesslock/Ghost,beautyOfProgram/Ghost,Brunation11/Ghost,Loyalsoldier/Ghost,lf2941270/Ghost,nmukh/Ghost,phillipalexander/Ghost,prosenjit-itobuz/Ghost,rito/Ghost,lowkeyfred/Ghost,tanbo800/Ghost,kolorahl/Ghost,telco2011/Ghost,uploadcare/uploadcare-ghost-demo,chris-yoon90/Ghost,gleneivey/Ghost,ASwitlyk/Ghost,MadeOnMars/Ghost,tidyui/Ghost,lethalbrains/Ghost,omaracrystal/Ghost,jamesslock/Ghost,sebgie/Ghost,Sebastian1011/Ghost,panezhang/Ghost,ladislas/ghost,kortemy/Ghost,sebgie/Ghost,mayconxhh/Ghost,zhiyishou/Ghost,patterncoder/patterncoder,lukaszklis/Ghost,tksander/Ghost,PepijnSenders/whatsontheotherside,beautyOfProgram/Ghost,metadevfoundation/Ghost,jgillich/Ghost,alecho/Ghost,ManRueda/manrueda-blog,ignasbernotas/nullifer,delgermurun/Ghost,atandon/Ghost,ljhsai/Ghost,tchapi/igneet-blog,ngosinafrica/SiteForNGOs,anijap/PhotoGhost,jaguerra/Ghost,MadeOnMars/Ghost,TryGhost/Ghost,influitive/crafters,ckousik/Ghost,TryGhost/Ghost,jaswilli/Ghost,ThorstenHans/Ghost,dymx101/Ghost,PaulBGD/Ghost-Plus,Coding-House/Ghost,cwonrails/Ghost,blankmaker/Ghost,letsjustfixit/Ghost,mhhf/ghost-latex,mtvillwock/Ghost,cysys/ghost-openshift,blankmaker/Ghost,claudiordgz/Ghost,rollokb/Ghost,lukw00/Ghost,zackslash/Ghost,jiangjian-zh/Ghost,TryGhost/Ghost,PepijnSenders/whatsontheotherside,andrewconnell/Ghost,k2byew/Ghost,gcamana/Ghost,vainglori0us/urban-fortnight,darvelo/Ghost,ErisDS/Ghost,janvt/Ghost,qdk0901/Ghost,smaty1/Ghost,acburdine/Ghost,alecho/Ghost,NamedGod/Ghost,gabfssilva/Ghost,UnbounDev/Ghost,bitjson/Ghost,stridespace/Ghost,thinq4yourself/Unmistakable-Blog,DesenTao/Ghost,pollbox/ghostblog,julianromera/Ghost,cysys/ghost-openshift,ryansukale/ux.ryansukale.com,Kikobeats/Ghost,carlosmtx/Ghost,Remchi/Ghost,sajmoon/Ghost,greyhwndz/Ghost,morficus/Ghost,benstoltz/Ghost,davidenq/Ghost-Blog,augbog/Ghost,kwangkim/Ghost,andrewconnell/Ghost,aroneiermann/GhostJade,sfpgmr/Ghost,fredeerock/atlabghost,diogogmt/Ghost,Elektro1776/javaPress,daihuaye/Ghost,dYale/blog,diancloud/Ghost,ashishapy/ghostpy,thehogfather/Ghost,nmukh/Ghost,karmakaze/Ghost,makapen/Ghost,Japh/Ghost,NamedGod/Ghost,greyhwndz/Ghost,mhhf/ghost-latex,ineitzke/Ghost,JulienBrks/Ghost,lethalbrains/Ghost,Azzurrio/Ghost,mohanambati/Ghost,edurangel/Ghost,petersucks/blog,ballPointPenguin/Ghost,obsoleted/Ghost,rchrd2/Ghost,VillainyStudios/Ghost,benstoltz/Ghost,letsjustfixit/Ghost,dggr/Ghost-sr,hyokosdeveloper/Ghost,morficus/Ghost,rizkyario/Ghost,epicmiller/pages,weareleka/blog,virtuallyearthed/Ghost,leninhasda/Ghost,tanbo800/Ghost,tadityar/Ghost,LeandroNascimento/Ghost,greenboxindonesia/Ghost,PeterCxy/Ghost,theonlypat/Ghost,sunh3/Ghost,Gargol/Ghost,bosung90/Ghost,rizkyario/Ghost,dggr/Ghost-sr,mattchupp/blog,YY030913/Ghost,woodyrew/Ghost,notno/Ghost,madole/diverse-learners,denzelwamburu/denzel.xyz,BayPhillips/Ghost,Alxandr/Blog,lukw00/Ghost,jeonghwan-kim/Ghost,mtvillwock/Ghost,ljhsai/Ghost,rmoorman/Ghost,zeropaper/Ghost,letsjustfixit/Ghost,dgem/Ghost,sergeylukin/Ghost,rizkyario/Ghost,omaracrystal/Ghost,rollokb/Ghost,woodyrew/Ghost,schematical/Ghost,kevinansfield/Ghost,imjerrybao/Ghost,hoxoa/Ghost,thomasalrin/Ghost,francisco-filho/Ghost,bastianbin/Ghost,dai-shi/Ghost,rameshponnada/Ghost,patterncoder/patterncoder,Bunk/Ghost,dylanchernick/ghostblog,jomahoney/Ghost,e10/Ghost,gcamana/Ghost,ashishapy/ghostpy,pedroha/Ghost,disordinary/Ghost,hyokosdeveloper/Ghost,duyetdev/islab,camilodelvasto/localghost,smedrano/Ghost,dYale/blog,Japh/shortcoffee,javorszky/Ghost,zumobi/Ghost,ManRueda/Ghost,v3rt1go/Ghost,leonli/ghost,SachaG/bjjbot-blog,cicorias/Ghost,rchrd2/Ghost,shannonshsu/Ghost,epicmiller/pages,augbog/Ghost,JohnONolan/Ghost,PDXIII/Ghost-FormMailer,manishchhabra/Ghost,lukekhamilton/Ghost,zumobi/Ghost,dai-shi/Ghost,atandon/Ghost,Rovak/Ghost,ryanbrunner/crafters,Kaenn/Ghost,jomofrodo/ccb-ghost,wallmarkets/Ghost,r14r/fork_nodejs_ghost,SachaG/bjjbot-blog,rafaelstz/Ghost,Feitianyuan/Ghost,veyo-care/Ghost,obsoleted/Ghost,Dnlyc/Ghost,GarrethDottin/Habits-Design,IbrahimAmin/Ghost,francisco-filho/Ghost,daihuaye/Ghost,developer-prosenjit/Ghost,nneko/Ghost,barbastan/Ghost,barbastan/Ghost,Elektro1776/javaPress,rito/Ghost,arvidsvensson/Ghost,delgermurun/Ghost,cncodog/Ghost-zh-codog,nneko/Ghost,codeincarnate/Ghost,JonathanZWhite/Ghost,carlyledavis/Ghost,kortemy/Ghost,djensen47/Ghost,Alxandr/Blog,leonli/ghost,praveenscience/Ghost,ManRueda/Ghost,yanntech/Ghost,ManRueda/manrueda-blog,handcode7/Ghost,devleague/uber-hackathon,liftup/ghost,Coding-House/Ghost,zhiyishou/Ghost,carlyledavis/Ghost,Feitianyuan/Ghost,camilodelvasto/herokughost,icowan/Ghost,ignasbernotas/nullifer,acburdine/Ghost,ngosinafrica/SiteForNGOs,mdbw/ghost,flpms/ghost-ad,UnbounDev/Ghost,daimaqiao/Ghost-Bridge,panezhang/Ghost,akveo/akveo-blog,uploadcare/uploadcare-ghost-demo,developer-prosenjit/Ghost,Netazoic/bad-gateway,cicorias/Ghost,sceltoas/Ghost,cqricky/Ghost,Loyalsoldier/Ghost,singular78/Ghost,sfpgmr/Ghost,jiachenning/Ghost,veyo-care/Ghost,syaiful6/Ghost,flomotlik/Ghost,olsio/Ghost,Yarov/yarov,novaugust/Ghost,rmoorman/Ghost,sajmoon/Ghost,cqricky/Ghost,jeonghwan-kim/Ghost,load11/ghost,hnarayanan/narayanan.co,zackslash/Ghost,kevinansfield/Ghost,mnitchie/Ghost,wspandihai/Ghost,zeropaper/Ghost,ladislas/ghost,DesenTao/Ghost,bitjson/Ghost,rafaelstz/Ghost,jaswilli/Ghost,pbevin/Ghost,PaulBGD/Ghost-Plus,dqj/Ghost,Smile42RU/Ghost,KnowLoading/Ghost,theonlypat/Ghost,etdev/blog,v3rt1go/Ghost,weareleka/blog,tandrewnichols/ghost,ghostchina/Ghost-zh,bosung90/Ghost,gabfssilva/Ghost,olsio/Ghost,dqj/Ghost,mdbw/ghost,kolorahl/Ghost,cwonrails/Ghost,icowan/Ghost,optikalefx/Ghost,daimaqiao/Ghost-Bridge,claudiordgz/Ghost,johngeorgewright/blog.j-g-w.info,STANAPO/Ghost,Kaenn/Ghost,LeandroNascimento/Ghost,ballPointPenguin/Ghost,aroneiermann/GhostJade,optikalefx/Ghost,r14r/fork_nodejs_ghost,lanffy/Ghost,carlosmtx/Ghost,sebgie/Ghost,r1N0Xmk2/Ghost,UsmanJ/Ghost,Azzurrio/Ghost,no1lov3sme/Ghost,devleague/uber-hackathon,xiongjungit/Ghost,vloom/blog,Kikobeats/Ghost,STANAPO/Ghost,edsadr/Ghost,ASwitlyk/Ghost,hoxoa/Ghost,ClarkGH/Ghost,Rovak/Ghost,madole/diverse-learners,Kikobeats/Ghost,katrotz/blog.katrotz.space,bbmepic/Ghost,melissaroman/ghost-blog,jorgegilmoreira/ghost,JonSmith/Ghost,lanffy/Ghost,trunk-studio/Ghost,klinker-apps/ghost,VillainyStudios/Ghost,ivanoats/ivanstorck.com,FredericBernardo/Ghost,tandrewnichols/ghost,Brunation11/Ghost,pathayes/FoodBlog,NovaDevelopGroup/Academy,Smile42RU/Ghost,ManRueda/Ghost,novaugust/Ghost,leninhasda/Ghost,thomasalrin/Ghost,Jai-Chaudhary/Ghost,JulienBrks/Ghost,wemakeweb/Ghost,GroupxDev/javaPress,jacostag/Ghost,sergeylukin/Ghost,akveo/akveo-blog,rouanw/Ghost,exsodus3249/Ghost,singular78/Ghost,praveenscience/Ghost,camilodelvasto/localghost,disordinary/Ghost,syaiful6/Ghost,javimolla/Ghost,phillipalexander/Ghost,llv22/Ghost,javimolla/Ghost,ygbhf/Ghost,cncodog/Ghost-zh-codog,hnq90/Ghost,llv22/Ghost,GroupxDev/javaPress,Sebastian1011/Ghost,jgillich/Ghost,mnitchie/Ghost,yangli1990/Ghost,aschmoe/jesse-ghost-app,etanxing/Ghost,sangcu/Ghost,shrimpy/Ghost,ghostchina/Ghost-zh,e10/Ghost,NikolaiIvanov/Ghost,PeterCxy/Ghost,ivantedja/ghost,duyetdev/islab,gleneivey/Ghost,dgem/Ghost,AlexKVal/Ghost,JonathanZWhite/Ghost,axross/ghost,situkangsayur/Ghost,camilodelvasto/herokughost,skmezanul/Ghost,greenboxindonesia/Ghost,SkynetInc/steam,sifatsultan/js-ghost,edurangel/Ghost,denzelwamburu/denzel.xyz,memezilla/Ghost,RufusMbugua/TheoryOfACoder,ErisDS/Ghost,rameshponnada/Ghost,liftup/ghost,AnthonyCorrado/Ghost,ineitzke/Ghost,pollbox/ghostblog,mayconxhh/Ghost,Bunk/Ghost,diogogmt/Ghost,mattchupp/blog,ITJesse/Ghost-zh,trunk-studio/Ghost,GroupxDev/javaPress,Romdeau/Ghost,johnnymitch/Ghost,schematical/Ghost,ErisDS/Ghost,psychobunny/Ghost,netputer/Ghost,RufusMbugua/TheoryOfACoder,UsmanJ/Ghost,fredeerock/atlabghost,aschmoe/jesse-ghost-app,Japh/Ghost,mlabieniec/ghost-env,jomahoney/Ghost,Gargol/Ghost,NikolaiIvanov/Ghost,jaguerra/Ghost,ananthhh/Ghost,jin/Ghost,sangcu/Ghost,mlabieniec/ghost-env,cysys/ghost-openshift,metadevfoundation/Ghost,cncodog/Ghost-zh-codog,tmp-reg/Ghost,flpms/ghost-ad,ThorstenHans/Ghost,bsansouci/Ghost,AnthonyCorrado/Ghost,yundt/seisenpenji,Netazoic/bad-gateway,yundt/seisenpenji,jomofrodo/ccb-ghost,johngeorgewright/blog.j-g-w.info,ckousik/Ghost,thehogfather/Ghost,dylanchernick/ghostblog,katrotz/blog.katrotz.space,pbevin/Ghost,tyrikio/Ghost,ananthhh/Ghost,Romdeau/Ghost,Trendy/Ghost,yangli1990/Ghost,adam-paterson/blog,memezilla/Ghost,manishchhabra/Ghost,tksander/Ghost,IbrahimAmin/Ghost,pedroha/Ghost,Remchi/Ghost,wspandihai/Ghost,KnowLoading/Ghost,prosenjit-itobuz/Ghost,edsadr/Ghost,vloom/blog,ClarkGH/Ghost,imjerrybao/Ghost,jacostag/Ghost,lowkeyfred/Ghost,yanntech/Ghost,smaty1/Ghost,smedrano/Ghost,kortemy/Ghost,load11/ghost,melissaroman/ghost-blog,diancloud/Ghost,situkangsayur/Ghost,vainglori0us/urban-fortnight,ITJesse/Ghost-zh,wangjun/Ghost,lukaszklis/Ghost,dggr/Ghost-sr,thinq4yourself/Unmistakable-Blog,shrimpy/Ghost,exsodus3249/Ghost,kaychaks/kaushikc.org,karmakaze/Ghost,davidmenger/nodejsfan,etdev/blog,hnq90/Ghost,hnarayanan/narayanan.co,mohanambati/Ghost,NovaDevelopGroup/Academy,velimir0xff/Ghost,FredericBernardo/Ghost,sceltoas/Ghost,darvelo/Ghost,schneidmaster/theventriloquist.us,johnnymitch/Ghost,handcode7/Ghost,jorgegilmoreira/ghost,vainglori0us/urban-fortnight,ygbhf/Ghost,r1N0Xmk2/Ghost,no1lov3sme/Ghost,Yarov/yarov,virtuallyearthed/Ghost,schneidmaster/theventriloquist.us,skmezanul/Ghost,petersucks/blog,singular78/Ghost,bsansouci/Ghost,arvidsvensson/Ghost,klinker-apps/ghost,JohnONolan/Ghost,Netazoic/bad-gateway,kaychaks/kaushikc.org,jiachenning/Ghost,jin/Ghost,kevinansfield/Ghost,Jai-Chaudhary/Ghost,wemakeweb/Ghost,pathayes/FoodBlog,Klaudit/Ghost,dbalders/Ghost,stridespace/Ghost,TribeMedia/Ghost,SkynetInc/steam,hilerchyn/Ghost,Xibao-Lv/Ghost,acburdine/Ghost,devleague/uber-hackathon,javorszky/Ghost,tidyui/Ghost,allanjsx/Ghost,tyrikio/Ghost,adam-paterson/blog,chevex/undoctrinate,jomofrodo/ccb-ghost,leonli/ghost,davidenq/Ghost-Blog,PDXIII/Ghost-FormMailer,notno/Ghost,riyadhalnur/Ghost,Kaenn/Ghost,makapen/Ghost,wallmarkets/Ghost,Japh/shortcoffee,NovaDevelopGroup/Academy,ManRueda/manrueda-blog,Netazoic/bad-gateway,JonSmith/Ghost,axross/ghost,dbalders/Ghost,AlexKVal/Ghost,xiongjungit/Ghost,psychobunny/Ghost,tadityar/Ghost,ivanoats/ivanstorck.com,dbalders/Ghost,Xibao-Lv/Ghost,novaugust/Ghost,Elektro1776/javaPress,riyadhalnur/Ghost,bisoe/Ghost,mlabieniec/ghost-env,JohnONolan/Ghost,jorgegilmoreira/ghost,janvt/Ghost,bisoe/Ghost,YY030913/Ghost,anijap/PhotoGhost,djensen47/Ghost,julianromera/Ghost,telco2011/Ghost,mohanambati/Ghost,Dnlyc/Ghost,etanxing/Ghost,velimir0xff/Ghost,tmp-reg/Ghost,BlueHatbRit/Ghost,TribeMedia/Ghost,lukekhamilton/Ghost,hilerchyn/Ghost,dymx101/Ghost,sifatsultan/js-ghost,allanjsx/Ghost,allanjsx/Ghost,cwonrails/Ghost,ryansukale/ux.ryansukale.com,k2byew/Ghost,daimaqiao/Ghost-Bridge,jiangjian-zh/Ghost,Klaudit/Ghost,rouanw/Ghost,davidenq/Ghost-Blog,bastianbin/Ghost,lf2941270/Ghost,Trendy/Ghost,influitive/crafters,ryanbrunner/crafters,netputer/Ghost,qdk0901/Ghost,BlueHatbRit/Ghost,telco2011/Ghost,BayPhillips/Ghost,ddeveloperr/Ghost,davidmenger/nodejsfan,GarrethDottin/Habits-Design,bbmepic/Ghost,chris-yoon90/Ghost,codeincarnate/Ghost,flomotlik/Ghost,Alxandr/Blog,kwangkim/Ghost,ddeveloperr/Ghost,wangjun/Ghost