Fix incorrect error message on channel join pattern mismatch.
Fix incorrect error message on channel join pattern mismatch.

lono-devices/phoenix,iStefo/phoenix,eksperimental/phoenix,bsmr-erlang/phoenix,phoenixframework/phoenix,Kosmas/phoenix,wsmoak/phoenix,Smulligan85/phoenix,pap/phoenix,Gazler/phoenix,mvidaurre/phoenix,Joe-noh/phoenix,0x00evil/phoenix,CD1212/phoenix,ybur-yug/phoenix,lancehalvorsen/phoenix,Rumel/phoenix,Gazler/phoenix,seejee/phoenix,stevedomin/phoenix,michalmuskala/phoenix,Joe-noh/phoenix,tony612/phoenix,mitchellhenke/phoenix,vic/phoenix,trarbr/phoenix,nshafer/phoenix,jamilabreu/phoenix,eksperimental/phoenix,evax/phoenix,Kosmas/phoenix,mobileoverlord/phoenix,cas27/phoenix,michalmuskala/phoenix,trarbr/phoenix,Rumel/phoenix,mschae/phoenix,rodrigues/phoenix,andrewvy/phoenix,Smulligan85/phoenix,ybur-yug/phoenix,phoenixframework/phoenix,mitchellhenke/phoenix,mschae/phoenix,DavidAlphaFox/phoenix,bsmr-erlang/phoenix,Ben-Evolently/phoenix,rafbgarcia/phoenix,foxnewsnetwork/phoenix,omotenko/phoenix_auth,DavidAlphaFox/phoenix,lono-devices/phoenix,0x00evil/phoenix,mvidaurre/phoenix,gjaldon/phoenix,jamilabreu/phoenix,y-yagi/phoenix,cas27/phoenix,lancehalvorsen/phoenix,omotenko/phoenix_auth,rafbgarcia/phoenix,dmarkow/phoenix,manukall/phoenix,ericmj/phoenix,ephe-meral/phoenix,evax/phoenix,0x00evil/phoenix,ephe-meral/phoenix,optikfluffel/phoenix,manukall/phoenix,korobkov/phoenix,gjaldon/phoenix,stevedomin/phoenix,andrewvy/phoenix,iStefo/phoenix,ericmj/phoenix,rodrigues/phoenix,optikfluffel/phoenix,rafbgarcia/phoenix,CultivateHQ/phoenix,nshafer/phoenix,CultivateHQ/phoenix,jwarwick/phoenix,dmarkow/phoenix,wsmoak/phoenix,mobileoverlord/phoenix,vic/phoenix,phoenixframework/phoenix,korobkov/phoenix,keathley/phoenix,optikfluffel/phoenix,pap/phoenix,keathley/phoenix,jwarwick/phoenix,seejee/phoenix,nshafer/phoenix,brucify/phoenix