refactor: reuse test string with embedded null char in util_tests
refactor: reuse test string with embedded null char in util_tests

kallewoof/bitcoin,AkioNak/bitcoin,Xekyo/bitcoin,apoelstra/bitcoin,domob1812/bitcoin,jamesob/bitcoin,domob1812/namecore,jambolo/bitcoin,GroestlCoin/GroestlCoin,bitcoin/bitcoin,jamesob/bitcoin,AkioNak/bitcoin,anditto/bitcoin,bitcoin/bitcoin,qtumproject/qtum,namecoin/namecore,dscotese/bitcoin,mruddy/bitcoin,AkioNak/bitcoin,yenliangl/bitcoin,apoelstra/bitcoin,namecoin/namecoin-core,kallewoof/bitcoin,sstone/bitcoin,namecoin/namecore,achow101/bitcoin,MarcoFalke/bitcoin,fujicoin/fujicoin,GroestlCoin/GroestlCoin,GroestlCoin/bitcoin,apoelstra/bitcoin,rnicoll/bitcoin,GroestlCoin/bitcoin,namecoin/namecore,jlopp/statoshi,bitcoinsSG/bitcoin,domob1812/bitcoin,AkioNak/bitcoin,jamesob/bitcoin,jambolo/bitcoin,fujicoin/fujicoin,mm-s/bitcoin,ajtowns/bitcoin,pataquets/namecoin-core,apoelstra/bitcoin,namecoin/namecoin-core,dscotese/bitcoin,mruddy/bitcoin,rnicoll/bitcoin,prusnak/bitcoin,anditto/bitcoin,jlopp/statoshi,anditto/bitcoin,domob1812/namecore,ajtowns/bitcoin,kallewoof/bitcoin,kallewoof/bitcoin,tecnovert/particl-core,qtumproject/qtum,andreaskern/bitcoin,sstone/bitcoin,qtumproject/qtum,mruddy/bitcoin,bitcoinknots/bitcoin,pataquets/namecoin-core,namecoin/namecoin-core,mm-s/bitcoin,Xekyo/bitcoin,ElementsProject/elements,mm-s/bitcoin,MarcoFalke/bitcoin,fanquake/bitcoin,namecoin/namecore,sipsorcery/bitcoin,sipsorcery/bitcoin,achow101/bitcoin,Xekyo/bitcoin,achow101/bitcoin,jamesob/bitcoin,particl/particl-core,namecoin/namecoin-core,JeremyRubin/bitcoin,GroestlCoin/bitcoin,GroestlCoin/bitcoin,ElementsProject/elements,rnicoll/bitcoin,tecnovert/particl-core,prusnak/bitcoin,yenliangl/bitcoin,sstone/bitcoin,JeremyRubin/bitcoin,tecnovert/particl-core,rnicoll/bitcoin,andreaskern/bitcoin,sstone/bitcoin,bitcoinsSG/bitcoin,tecnovert/particl-core,bitcoinsSG/bitcoin,bitcoin/bitcoin,jambolo/bitcoin,domob1812/namecore,domob1812/bitcoin,anditto/bitcoin,fujicoin/fujicoin,ElementsProject/elements,domob1812/namecore,qtumproject/qtum,achow101/bitcoin,particl/particl-core,fujicoin/fujicoin,pataquets/namecoin-core,prusnak/bitcoin,MarcoFalke/bitcoin,jlopp/statoshi,namecoin/namecoin-core,bitcoinsSG/bitcoin,jambolo/bitcoin,bitcoin/bitcoin,instagibbs/bitcoin,MarcoFalke/bitcoin,domob1812/bitcoin,Xekyo/bitcoin,JeremyRubin/bitcoin,pataquets/namecoin-core,dscotese/bitcoin,dscotese/bitcoin,kallewoof/bitcoin,sstone/bitcoin,rnicoll/bitcoin,prusnak/bitcoin,yenliangl/bitcoin,instagibbs/bitcoin,fujicoin/fujicoin,GroestlCoin/GroestlCoin,rnicoll/bitcoin,bitcoin/bitcoin,fujicoin/fujicoin,qtumproject/qtum,ajtowns/bitcoin,prusnak/bitcoin,bitcoinknots/bitcoin,MarcoFalke/bitcoin,JeremyRubin/bitcoin,particl/particl-core,particl/particl-core,mm-s/bitcoin,Xekyo/bitcoin,bitcoinknots/bitcoin,lateminer/bitcoin,jamesob/bitcoin,mruddy/bitcoin,jlopp/statoshi,ElementsProject/elements,jambolo/bitcoin,kallewoof/bitcoin,particl/particl-core,fanquake/bitcoin,JeremyRubin/bitcoin,instagibbs/bitcoin,andreaskern/bitcoin,fanquake/bitcoin,yenliangl/bitcoin,GroestlCoin/GroestlCoin,apoelstra/bitcoin,achow101/bitcoin,bitcoinknots/bitcoin,namecoin/namecore,qtumproject/qtum,domob1812/bitcoin,apoelstra/bitcoin,sipsorcery/bitcoin,lateminer/bitcoin,fanquake/bitcoin,andreaskern/bitcoin,sipsorcery/bitcoin,GroestlCoin/GroestlCoin,particl/particl-core,MarcoFalke/bitcoin,mruddy/bitcoin,tecnovert/particl-core,bitcoinsSG/bitcoin,andreaskern/bitcoin,pataquets/namecoin-core,jambolo/bitcoin,pataquets/namecoin-core,ajtowns/bitcoin,AkioNak/bitcoin,jlopp/statoshi,Xekyo/bitcoin,GroestlCoin/GroestlCoin,instagibbs/bitcoin,lateminer/bitcoin,ElementsProject/elements,domob1812/namecore,jlopp/statoshi,bitcoin/bitcoin,instagibbs/bitcoin,qtumproject/qtum,fanquake/bitcoin,andreaskern/bitcoin,GroestlCoin/bitcoin,AkioNak/bitcoin,lateminer/bitcoin,lateminer/bitcoin,bitcoinknots/bitcoin,anditto/bitcoin,namecoin/namecoin-core,achow101/bitcoin,GroestlCoin/bitcoin,yenliangl/bitcoin,ajtowns/bitcoin,prusnak/bitcoin,ElementsProject/elements,domob1812/namecore,tecnovert/particl-core,instagibbs/bitcoin,lateminer/bitcoin,anditto/bitcoin,fanquake/bitcoin,dscotese/bitcoin,bitcoinsSG/bitcoin,domob1812/bitcoin,sipsorcery/bitcoin,sstone/bitcoin,mm-s/bitcoin,jamesob/bitcoin,dscotese/bitcoin,JeremyRubin/bitcoin,namecoin/namecore,sipsorcery/bitcoin,mm-s/bitcoin,ajtowns/bitcoin,mruddy/bitcoin,yenliangl/bitcoin