lint: Fix shellcheck SC2155
lint: Fix shellcheck SC2155

Declare and assign separately to avoid masking return values.

https://github.com/koalaman/shellcheck/wiki/SC2155

jonasschnelli/bitcoin,particl/particl-core,mitchellcash/bitcoin,midnightmagic/bitcoin,EthanHeilman/bitcoin,fanquake/bitcoin,tecnovert/particl-core,qtumproject/qtum,peercoin/peercoin,achow101/bitcoin,alecalve/bitcoin,pstratem/bitcoin,GroestlCoin/GroestlCoin,monacoinproject/monacoin,instagibbs/bitcoin,GroestlCoin/GroestlCoin,namecoin/namecoin-core,mitchellcash/bitcoin,ElementsProject/elements,gjhiggins/vcoincore,monacoinproject/monacoin,tecnovert/particl-core,bitcoinsSG/bitcoin,MarcoFalke/bitcoin,pstratem/bitcoin,jlopp/statoshi,fanquake/bitcoin,MarcoFalke/bitcoin,cdecker/bitcoin,practicalswift/bitcoin,instagibbs/bitcoin,ajtowns/bitcoin,sstone/bitcoin,achow101/bitcoin,instagibbs/bitcoin,cdecker/bitcoin,DigitalPandacoin/pandacoin,namecoin/namecore,rnicoll/dogecoin,bitcoinknots/bitcoin,apoelstra/bitcoin,dscotese/bitcoin,yenliangl/bitcoin,qtumproject/qtum,n1bor/bitcoin,pataquets/namecoin-core,particl/particl-core,mm-s/bitcoin,anditto/bitcoin,EthanHeilman/bitcoin,pataquets/namecoin-core,fujicoin/fujicoin,andreaskern/bitcoin,dscotese/bitcoin,domob1812/namecore,namecoin/namecore,prusnak/bitcoin,gjhiggins/vcoincore,andreaskern/bitcoin,alecalve/bitcoin,jonasschnelli/bitcoin,qtumproject/qtum,mitchellcash/bitcoin,ElementsProject/elements,mruddy/bitcoin,rnicoll/dogecoin,jamesob/bitcoin,fanquake/bitcoin,vertcoin/vertcoin,DigitalPandacoin/pandacoin,ahmedbodi/vertcoin,MeshCollider/bitcoin,GroestlCoin/GroestlCoin,qtumproject/qtum,mruddy/bitcoin,mm-s/bitcoin,yenliangl/bitcoin,GroestlCoin/GroestlCoin,pstratem/bitcoin,Sjors/bitcoin,EthanHeilman/bitcoin,cdecker/bitcoin,andreaskern/bitcoin,DigitalPandacoin/pandacoin,pstratem/bitcoin,fujicoin/fujicoin,jnewbery/bitcoin,yenliangl/bitcoin,Xekyo/bitcoin,n1bor/bitcoin,domob1812/namecore,GroestlCoin/bitcoin,vertcoin/vertcoin,instagibbs/bitcoin,gjhiggins/vcoincore,anditto/bitcoin,gjhiggins/vcoincore,sipsorcery/bitcoin,bitcoinknots/bitcoin,litecoin-project/litecoin,MarcoFalke/bitcoin,jambolo/bitcoin,ajtowns/bitcoin,fujicoin/fujicoin,qtumproject/qtum,domob1812/namecore,lateminer/bitcoin,bitcoin/bitcoin,litecoin-project/litecoin,prusnak/bitcoin,bitcoinknots/bitcoin,kallewoof/bitcoin,namecoin/namecoin-core,anditto/bitcoin,fanquake/bitcoin,dscotese/bitcoin,namecoin/namecoin-core,jnewbery/bitcoin,jamesob/bitcoin,practicalswift/bitcoin,jlopp/statoshi,sstone/bitcoin,ahmedbodi/vertcoin,ahmedbodi/vertcoin,apoelstra/bitcoin,bitcoin/bitcoin,yenliangl/bitcoin,sstone/bitcoin,JeremyRubin/bitcoin,fujicoin/fujicoin,monacoinproject/monacoin,andreaskern/bitcoin,n1bor/bitcoin,sstone/bitcoin,pataquets/namecoin-core,n1bor/bitcoin,bitcoinknots/bitcoin,yenliangl/bitcoin,tjps/bitcoin,midnightmagic/bitcoin,ajtowns/bitcoin,fanquake/bitcoin,instagibbs/bitcoin,pstratem/bitcoin,cdecker/bitcoin,sstone/bitcoin,tecnovert/particl-core,lateminer/bitcoin,namecoin/namecoin-core,litecoin-project/litecoin,midnightmagic/bitcoin,MarcoFalke/bitcoin,tecnovert/particl-core,alecalve/bitcoin,DigitalPandacoin/pandacoin,EthanHeilman/bitcoin,ajtowns/bitcoin,litecoin-project/litecoin,Sjors/bitcoin,jambolo/bitcoin,bitcoinsSG/bitcoin,bitcoinsSG/bitcoin,MeshCollider/bitcoin,vertcoin/vertcoin,achow101/bitcoin,jlopp/statoshi,jnewbery/bitcoin,particl/particl-core,monacoinproject/monacoin,jambolo/bitcoin,litecoin-project/litecoin,cdecker/bitcoin,pataquets/namecoin-core,lateminer/bitcoin,MeshCollider/bitcoin,andreaskern/bitcoin,particl/particl-core,litecoin-project/litecoin,dscotese/bitcoin,bitcoinsSG/bitcoin,mm-s/bitcoin,peercoin/peercoin,bitcoinsSG/bitcoin,fujicoin/fujicoin,namecoin/namecoin-core,sipsorcery/bitcoin,namecoin/namecore,jnewbery/bitcoin,pataquets/namecoin-core,anditto/bitcoin,Sjors/bitcoin,vertcoin/vertcoin,AkioNak/bitcoin,Xekyo/bitcoin,achow101/bitcoin,jamesob/bitcoin,practicalswift/bitcoin,tjps/bitcoin,jamesob/bitcoin,JeremyRubin/bitcoin,vertcoin/vertcoin,vertcoin/vertcoin,Sjors/bitcoin,mruddy/bitcoin,rnicoll/bitcoin,bitcoinknots/bitcoin,achow101/bitcoin,jamesob/bitcoin,instagibbs/bitcoin,peercoin/peercoin,mitchellcash/bitcoin,alecalve/bitcoin,jonasschnelli/bitcoin,JeremyRubin/bitcoin,pataquets/namecoin-core,JeremyRubin/bitcoin,AkioNak/bitcoin,lateminer/bitcoin,namecoin/namecore,mruddy/bitcoin,AkioNak/bitcoin,domob1812/bitcoin,sipsorcery/bitcoin,particl/particl-core,rnicoll/bitcoin,prusnak/bitcoin,kallewoof/bitcoin,bitcoin/bitcoin,qtumproject/qtum,GroestlCoin/bitcoin,practicalswift/bitcoin,GroestlCoin/bitcoin,ElementsProject/elements,GroestlCoin/bitcoin,Xekyo/bitcoin,practicalswift/bitcoin,domob1812/bitcoin,domob1812/bitcoin,mitchellcash/bitcoin,jlopp/statoshi,tjps/bitcoin,bitcoin/bitcoin,JeremyRubin/bitcoin,mitchellcash/bitcoin,jlopp/statoshi,mm-s/bitcoin,namecoin/namecore,yenliangl/bitcoin,mm-s/bitcoin,MarcoFalke/bitcoin,n1bor/bitcoin,jambolo/bitcoin,practicalswift/bitcoin,prusnak/bitcoin,GroestlCoin/bitcoin,jonasschnelli/bitcoin,gjhiggins/vcoincore,DigitalPandacoin/pandacoin,tecnovert/particl-core,ahmedbodi/vertcoin,domob1812/namecore,namecoin/namecore,MeshCollider/bitcoin,JeremyRubin/bitcoin,fanquake/bitcoin,MarcoFalke/bitcoin,apoelstra/bitcoin,peercoin/peercoin,ElementsProject/elements,kallewoof/bitcoin,prusnak/bitcoin,Xekyo/bitcoin,lateminer/bitcoin,AkioNak/bitcoin,ahmedbodi/vertcoin,achow101/bitcoin,jonasschnelli/bitcoin,anditto/bitcoin,domob1812/namecore,lateminer/bitcoin,alecalve/bitcoin,bitcoin/bitcoin,midnightmagic/bitcoin,sipsorcery/bitcoin,domob1812/bitcoin,MeshCollider/bitcoin,GroestlCoin/GroestlCoin,domob1812/bitcoin,ajtowns/bitcoin,MeshCollider/bitcoin,rnicoll/bitcoin,midnightmagic/bitcoin,GroestlCoin/bitcoin,Xekyo/bitcoin,mruddy/bitcoin,domob1812/namecore,rnicoll/bitcoin,rnicoll/dogecoin,bitcoinsSG/bitcoin,andreaskern/bitcoin,jnewbery/bitcoin,sipsorcery/bitcoin,GroestlCoin/GroestlCoin,rnicoll/dogecoin,monacoinproject/monacoin,EthanHeilman/bitcoin,midnightmagic/bitcoin,mm-s/bitcoin,tjps/bitcoin,ajtowns/bitcoin,mruddy/bitcoin,kallewoof/bitcoin,apoelstra/bitcoin,kallewoof/bitcoin,EthanHeilman/bitcoin,dscotese/bitcoin,tjps/bitcoin,kallewoof/bitcoin,anditto/bitcoin,tjps/bitcoin,domob1812/bitcoin,ahmedbodi/vertcoin,peercoin/peercoin,sstone/bitcoin,qtumproject/qtum,Xekyo/bitcoin,jamesob/bitcoin,jambolo/bitcoin,peercoin/peercoin,gjhiggins/vcoincore,rnicoll/bitcoin,rnicoll/bitcoin,ElementsProject/elements,bitcoin/bitcoin,DigitalPandacoin/pandacoin,namecoin/namecoin-core,rnicoll/dogecoin,pstratem/bitcoin,tecnovert/particl-core,fujicoin/fujicoin,alecalve/bitcoin,AkioNak/bitcoin,n1bor/bitcoin,AkioNak/bitcoin,jambolo/bitcoin,Sjors/bitcoin,cdecker/bitcoin,dscotese/bitcoin,jlopp/statoshi,ElementsProject/elements,prusnak/bitcoin,particl/particl-core,apoelstra/bitcoin,apoelstra/bitcoin,monacoinproject/monacoin,sipsorcery/bitcoin