script: Fix boost/C++17 compile failure
script: Fix boost/C++17 compile failure

script/standard.cpp:297:48: error: temporary of type 'boost::static_visitor<CScript>' has protected destructor
    return boost::apply_visitor(CScriptVisitor{}, dest);
                                               ^
/usr/include/boost/variant/static_visitor.hpp:53:5: note: declared protected here
    ~static_visitor() = default;
    ^
1 error generated.

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