contrib: fix typo in install_db4.sh help message
contrib: fix typo in install_db4.sh help message

It installs db4, not db5.

domob1812/namecore,ajtowns/bitcoin,andreaskern/bitcoin,vmp32k/litecoin,midnightmagic/bitcoin,Christewart/bitcoin,BTCGPU/BTCGPU,jnewbery/bitcoin,domob1812/bitcoin,Kogser/bitcoin,ahmedbodi/vertcoin,h4x3rotab/BTCGPU,lbryio/lbrycrd,Bushstar/UFO-Project,gjhiggins/vcoincore,andreaskern/bitcoin,DigitalPandacoin/pandacoin,brandonrobertz/namecoin-core,lbryio/lbrycrd,jmcorgan/bitcoin,Kogser/bitcoin,ppcoin/ppcoin,qtumproject/qtum,mitchellcash/bitcoin,kazcw/bitcoin,OmniLayer/omnicore,TheBlueMatt/bitcoin,prusnak/bitcoin,donaloconnor/bitcoin,gjhiggins/vcoincore,particl/particl-core,fujicoin/fujicoin,domob1812/namecore,r8921039/bitcoin,Bushstar/UFO-Project,FeatherCoin/Feathercoin,viacoin/viacoin,RHavar/bitcoin,yenliangl/bitcoin,fanquake/bitcoin,BTCGPU/BTCGPU,randy-waterhouse/bitcoin,jambolo/bitcoin,apoelstra/bitcoin,particl/particl-core,tecnovert/particl-core,sebrandon1/bitcoin,peercoin/peercoin,domob1812/bitcoin,practicalswift/bitcoin,sebrandon1/bitcoin,prusnak/bitcoin,GroestlCoin/GroestlCoin,nikkitan/bitcoin,1185/starwels,achow101/bitcoin,bespike/litecoin,MarcoFalke/bitcoin,joshrabinowitz/bitcoin,GroestlCoin/bitcoin,BTCGPU/BTCGPU,jnewbery/bitcoin,achow101/bitcoin,GroestlCoin/bitcoin,droark/bitcoin,MazaCoin/maza,lbryio/lbrycrd,jnewbery/bitcoin,mm-s/bitcoin,rnicoll/dogecoin,anditto/bitcoin,kallewoof/bitcoin,rawodb/bitcoin,domob1812/huntercore,domob1812/bitcoin,litecoin-project/litecoin,andreaskern/bitcoin,pstratem/bitcoin,JeremyRubin/bitcoin,AkioNak/bitcoin,pstratem/bitcoin,alecalve/bitcoin,viacoin/viacoin,afk11/bitcoin,1185/starwels,Sjors/bitcoin,peercoin/peercoin,myriadcoin/myriadcoin,Flowdalic/bitcoin,vertcoin/vertcoin,thrasher-/litecoin,joshrabinowitz/bitcoin,bitcoinsSG/bitcoin,FeatherCoin/Feathercoin,OmniLayer/omnicore,bitcoin/bitcoin,AkioNak/bitcoin,sebrandon1/bitcoin,bespike/litecoin,mm-s/bitcoin,anditto/bitcoin,yenliangl/bitcoin,mitchellcash/bitcoin,instagibbs/bitcoin,sipsorcery/bitcoin,domob1812/namecore,starwels/starwels,jlopp/statoshi,maaku/bitcoin,sipsorcery/bitcoin,h4x3rotab/BTCGPU,bespike/litecoin,sipsorcery/bitcoin,guncoin/guncoin,alecalve/bitcoin,pataquets/namecoin-core,Kogser/bitcoin,myriadteam/myriadcoin,rnicoll/dogecoin,globaltoken/globaltoken,peercoin/peercoin,GroestlCoin/bitcoin,laudaa/bitcoin,vmp32k/litecoin,pataquets/namecoin-core,deeponion/deeponion,midnightmagic/bitcoin,bitcoinsSG/bitcoin,fujicoin/fujicoin,h4x3rotab/BTCGPU,bitcoin/bitcoin,vertcoin/vertcoin,viacoin/viacoin,jamesob/bitcoin,instagibbs/bitcoin,pstratem/bitcoin,apoelstra/bitcoin,bitcoinknots/bitcoin,sstone/bitcoin,paveljanik/bitcoin,rnicoll/bitcoin,namecoin/namecore,Flowdalic/bitcoin,kazcw/bitcoin,anditto/bitcoin,dscotese/bitcoin,ericshawlinux/bitcoin,viacoin/viacoin,jmcorgan/bitcoin,laudaa/bitcoin,bitcoin/bitcoin,CryptArc/bitcoin,midnightmagic/bitcoin,vertcoin/vertcoin,EthanHeilman/bitcoin,randy-waterhouse/bitcoin,anditto/bitcoin,untrustbank/litecoin,laudaa/bitcoin,rnicoll/bitcoin,pataquets/namecoin-core,sebrandon1/bitcoin,fanquake/bitcoin,domob1812/bitcoin,yenliangl/bitcoin,jmcorgan/bitcoin,Kogser/bitcoin,jambolo/bitcoin,ericshawlinux/bitcoin,digibyte/digibyte,starwels/starwels,donaloconnor/bitcoin,Christewart/bitcoin,bespike/litecoin,kallewoof/bitcoin,Sjors/bitcoin,domob1812/huntercore,jamesob/bitcoin,pataquets/namecoin-core,cdecker/bitcoin,GroestlCoin/GroestlCoin,droark/bitcoin,deeponion/deeponion,vmp32k/litecoin,ElementsProject/elements,jonasschnelli/bitcoin,untrustbank/litecoin,Kogser/bitcoin,afk11/bitcoin,prusnak/bitcoin,sstone/bitcoin,bitcoinknots/bitcoin,rnicoll/bitcoin,GlobalBoost/GlobalBoost,maaku/bitcoin,RHavar/bitcoin,MarcoFalke/bitcoin,litecoin-project/litecoin,digibyte/digibyte,viacoin/viacoin,ryanofsky/bitcoin,MeshCollider/bitcoin,qtumproject/qtum,jambolo/bitcoin,starwels/starwels,ppcoin/ppcoin,thrasher-/litecoin,JeremyRubin/bitcoin,namecoin/namecore,achow101/bitcoin,MeshCollider/bitcoin,mitchellcash/bitcoin,r8921039/bitcoin,Flowdalic/bitcoin,MeshCollider/bitcoin,n1bor/bitcoin,TheBlueMatt/bitcoin,MeshCollider/bitcoin,GlobalBoost/GlobalBoost,jonasschnelli/bitcoin,bitcoin/bitcoin,dscotese/bitcoin,lbryio/lbrycrd,1185/starwels,achow101/bitcoin,paveljanik/bitcoin,ajtowns/bitcoin,lateminer/bitcoin,globaltoken/globaltoken,digibyte/digibyte,myriadcoin/myriadcoin,sstone/bitcoin,Flowdalic/bitcoin,domob1812/bitcoin,DigitalPandacoin/pandacoin,rnicoll/bitcoin,wellenreiter01/Feathercoin,mruddy/bitcoin,Bushstar/UFO-Project,rnicoll/dogecoin,thrasher-/litecoin,CryptArc/bitcoin,tjps/bitcoin,maaku/bitcoin,wellenreiter01/Feathercoin,vertcoin/vertcoin,domob1812/namecore,1185/starwels,lbryio/lbrycrd,monacoinproject/monacoin,Bushstar/UFO-Project,bitcoinsSG/bitcoin,CryptArc/bitcoin,jambolo/bitcoin,laudaa/bitcoin,nikkitan/bitcoin,TheBlueMatt/bitcoin,laudaa/bitcoin,droark/bitcoin,GroestlCoin/GroestlCoin,EthanHeilman/bitcoin,brandonrobertz/namecoin-core,MarcoFalke/bitcoin,Kogser/bitcoin,peercoin/peercoin,vmp32k/litecoin,guncoin/guncoin,TheBlueMatt/bitcoin,1185/starwels,ericshawlinux/bitcoin,FeatherCoin/Feathercoin,bitcoinknots/bitcoin,AkioNak/bitcoin,DigitalPandacoin/pandacoin,randy-waterhouse/bitcoin,Bushstar/UFO-Project,tjps/bitcoin,afk11/bitcoin,ericshawlinux/bitcoin,n1bor/bitcoin,alecalve/bitcoin,droark/bitcoin,prusnak/bitcoin,instagibbs/bitcoin,rawodb/bitcoin,h4x3rotab/BTCGPU,namecoin/namecoin-core,litecoin-project/litecoin,ryanofsky/bitcoin,namecoin/namecoin-core,jmcorgan/bitcoin,myriadteam/myriadcoin,JeremyRubin/bitcoin,CryptArc/bitcoin,h4x3rotab/BTCGPU,MeshCollider/bitcoin,CryptArc/bitcoin,donaloconnor/bitcoin,jonasschnelli/bitcoin,jonasschnelli/bitcoin,rawodb/bitcoin,maaku/bitcoin,mitchellcash/bitcoin,jtimon/bitcoin,prusnak/bitcoin,particl/particl-core,namecoin/namecoin-core,jtimon/bitcoin,jamesob/bitcoin,paveljanik/bitcoin,qtumproject/qtum,jonasschnelli/bitcoin,myriadcoin/myriadcoin,Sjors/bitcoin,Christewart/bitcoin,bitcoinknots/bitcoin,r8921039/bitcoin,FeatherCoin/Feathercoin,donaloconnor/bitcoin,ajtowns/bitcoin,namecoin/namecore,GroestlCoin/bitcoin,wellenreiter01/Feathercoin,namecoin/namecoin-core,lateminer/bitcoin,bitcoinsSG/bitcoin,instagibbs/bitcoin,EthanHeilman/bitcoin,r8921039/bitcoin,1185/starwels,mruddy/bitcoin,sstone/bitcoin,Christewart/bitcoin,rnicoll/dogecoin,maaku/bitcoin,myriadteam/myriadcoin,Bushstar/UFO-Project,BTCGPU/BTCGPU,mb300sd/bitcoin,domob1812/huntercore,myriadcoin/myriadcoin,ahmedbodi/vertcoin,sipsorcery/bitcoin,fujicoin/fujicoin,yenliangl/bitcoin,jtimon/bitcoin,sipsorcery/bitcoin,afk11/bitcoin,starwels/starwels,MazaCoin/maza,BTCGPU/BTCGPU,mb300sd/bitcoin,bitcoinsSG/bitcoin,lateminer/bitcoin,starwels/starwels,domob1812/bitcoin,yenliangl/bitcoin,myriadteam/myriadcoin,practicalswift/bitcoin,r8921039/bitcoin,deeponion/deeponion,n1bor/bitcoin,CryptArc/bitcoin,deeponion/deeponion,qtumproject/qtum,ElementsProject/elements,ryanofsky/bitcoin,Xekyo/bitcoin,kazcw/bitcoin,lbryio/lbrycrd,nikkitan/bitcoin,nikkitan/bitcoin,qtumproject/qtum,randy-waterhouse/bitcoin,brandonrobertz/namecoin-core,anditto/bitcoin,tjps/bitcoin,particl/particl-core,jlopp/statoshi,globaltoken/globaltoken,kallewoof/bitcoin,mruddy/bitcoin,ahmedbodi/vertcoin,mruddy/bitcoin,bitcoinsSG/bitcoin,ryanofsky/bitcoin,mitchellcash/bitcoin,gjhiggins/vcoincore,r8921039/bitcoin,JeremyRubin/bitcoin,ahmedbodi/vertcoin,gjhiggins/vcoincore,practicalswift/bitcoin,kallewoof/bitcoin,RHavar/bitcoin,guncoin/guncoin,lbryio/lbrycrd,OmniLayer/omnicore,fujicoin/fujicoin,MarcoFalke/bitcoin,Xekyo/bitcoin,instagibbs/bitcoin,digibyte/digibyte,lateminer/bitcoin,Kogser/bitcoin,andreaskern/bitcoin,MarcoFalke/bitcoin,MazaCoin/maza,ryanofsky/bitcoin,Kogser/bitcoin,tjps/bitcoin,jmcorgan/bitcoin,namecoin/namecore,qtumproject/qtum,namecoin/namecoin-core,jtimon/bitcoin,stamhe/bitcoin,rawodb/bitcoin,MazaCoin/maza,dscotese/bitcoin,monacoinproject/monacoin,vmp32k/litecoin,fujicoin/fujicoin,GlobalBoost/GlobalBoost,DigitalPandacoin/pandacoin,lateminer/bitcoin,cdecker/bitcoin,stamhe/bitcoin,stamhe/bitcoin,peercoin/peercoin,starwels/starwels,donaloconnor/bitcoin,MazaCoin/maza,Flowdalic/bitcoin,instagibbs/bitcoin,n1bor/bitcoin,Kogser/bitcoin,TheBlueMatt/bitcoin,jlopp/statoshi,GlobalBoost/GlobalBoost,ElementsProject/elements,joshrabinowitz/bitcoin,Xekyo/bitcoin,MazaCoin/maza,tecnovert/particl-core,thrasher-/litecoin,tjps/bitcoin,ajtowns/bitcoin,globaltoken/globaltoken,randy-waterhouse/bitcoin,jmcorgan/bitcoin,litecoin-project/litecoin,achow101/bitcoin,midnightmagic/bitcoin,guncoin/guncoin,ahmedbodi/vertcoin,jlopp/statoshi,mm-s/bitcoin,brandonrobertz/namecoin-core,n1bor/bitcoin,globaltoken/globaltoken,vmp32k/litecoin,pstratem/bitcoin,apoelstra/bitcoin,andreaskern/bitcoin,rnicoll/bitcoin,GlobalBoost/GlobalBoost,cdecker/bitcoin,OmniLayer/omnicore,namecoin/namecore,tecnovert/particl-core,ryanofsky/bitcoin,pataquets/namecoin-core,cdecker/bitcoin,ElementsProject/elements,jamesob/bitcoin,rnicoll/dogecoin,brandonrobertz/namecoin-core,OmniLayer/omnicore,ahmedbodi/vertcoin,litecoin-project/litecoin,jtimon/bitcoin,domob1812/huntercore,DigitalPandacoin/pandacoin,JeremyRubin/bitcoin,EthanHeilman/bitcoin,monacoinproject/monacoin,bitcoin/bitcoin,litecoin-project/litecoin,cdecker/bitcoin,bitcoin/bitcoin,GroestlCoin/bitcoin,MarcoFalke/bitcoin,jtimon/bitcoin,pataquets/namecoin-core,myriadteam/myriadcoin,EthanHeilman/bitcoin,ajtowns/bitcoin,mb300sd/bitcoin,Christewart/bitcoin,fanquake/bitcoin,kallewoof/bitcoin,jambolo/bitcoin,monacoinproject/monacoin,tecnovert/particl-core,donaloconnor/bitcoin,pstratem/bitcoin,ericshawlinux/bitcoin,namecoin/namecore,bitcoinknots/bitcoin,domob1812/namecore,namecoin/namecoin-core,jamesob/bitcoin,fanquake/bitcoin,Xekyo/bitcoin,Kogser/bitcoin,RHavar/bitcoin,laudaa/bitcoin,practicalswift/bitcoin,Kogser/bitcoin,GroestlCoin/bitcoin,paveljanik/bitcoin,domob1812/huntercore,mm-s/bitcoin,GlobalBoost/GlobalBoost,alecalve/bitcoin,untrustbank/litecoin,domob1812/namecore,cdecker/bitcoin,dscotese/bitcoin,guncoin/guncoin,ElementsProject/elements,particl/particl-core,untrustbank/litecoin,sstone/bitcoin,untrustbank/litecoin,FeatherCoin/Feathercoin,EthanHeilman/bitcoin,thrasher-/litecoin,TheBlueMatt/bitcoin,RHavar/bitcoin,anditto/bitcoin,Sjors/bitcoin,sstone/bitcoin,digibyte/digibyte,myriadteam/myriadcoin,ElementsProject/elements,practicalswift/bitcoin,alecalve/bitcoin,GlobalBoost/GlobalBoost,DigitalPandacoin/pandacoin,vertcoin/vertcoin,OmniLayer/omnicore,lateminer/bitcoin,digibyte/digibyte,jnewbery/bitcoin,yenliangl/bitcoin,alecalve/bitcoin,joshrabinowitz/bitcoin,paveljanik/bitcoin,AkioNak/bitcoin,untrustbank/litecoin,midnightmagic/bitcoin,joshrabinowitz/bitcoin,tecnovert/particl-core,myriadcoin/myriadcoin,viacoin/viacoin,stamhe/bitcoin,deeponion/deeponion,jambolo/bitcoin,kallewoof/bitcoin,droark/bitcoin,achow101/bitcoin,ajtowns/bitcoin,mm-s/bitcoin,rnicoll/bitcoin,apoelstra/bitcoin,tecnovert/particl-core,ericshawlinux/bitcoin,jamesob/bitcoin,FeatherCoin/Feathercoin,sipsorcery/bitcoin,mb300sd/bitcoin,deeponion/deeponion,monacoinproject/monacoin,BTCGPU/BTCGPU,gjhiggins/vcoincore,ppcoin/ppcoin,tjps/bitcoin,domob1812/huntercore,andreaskern/bitcoin,joshrabinowitz/bitcoin,rawodb/bitcoin,randy-waterhouse/bitcoin,MeshCollider/bitcoin,kazcw/bitcoin,qtumproject/qtum,kazcw/bitcoin,droark/bitcoin,mruddy/bitcoin,GroestlCoin/GroestlCoin,gjhiggins/vcoincore,mitchellcash/bitcoin,rawodb/bitcoin,mruddy/bitcoin,h4x3rotab/BTCGPU,particl/particl-core,paveljanik/bitcoin,JeremyRubin/bitcoin,maaku/bitcoin,AkioNak/bitcoin,stamhe/bitcoin,Flowdalic/bitcoin,pstratem/bitcoin,AkioNak/bitcoin,peercoin/peercoin,guncoin/guncoin,RHavar/bitcoin,afk11/bitcoin,myriadcoin/myriadcoin,Christewart/bitcoin,nikkitan/bitcoin,bespike/litecoin,wellenreiter01/Feathercoin,dscotese/bitcoin,Xekyo/bitcoin,sebrandon1/bitcoin,wellenreiter01/Feathercoin,fanquake/bitcoin,ppcoin/ppcoin,mb300sd/bitcoin,afk11/bitcoin,apoelstra/bitcoin,Sjors/bitcoin,globaltoken/globaltoken,mm-s/bitcoin,GroestlCoin/GroestlCoin,vertcoin/vertcoin,fujicoin/fujicoin,stamhe/bitcoin,jnewbery/bitcoin,apoelstra/bitcoin,thrasher-/litecoin,Xekyo/bitcoin,kazcw/bitcoin,n1bor/bitcoin,monacoinproject/monacoin,jlopp/statoshi,fanquake/bitcoin,dscotese/bitcoin,wellenreiter01/Feathercoin,Kogser/bitcoin,prusnak/bitcoin,brandonrobertz/namecoin-core,GroestlCoin/GroestlCoin,jlopp/statoshi,practicalswift/bitcoin,midnightmagic/bitcoin,bespike/litecoin,mb300sd/bitcoin,nikkitan/bitcoin,sebrandon1/bitcoin