Fix "gmake check" under OpenBSD 6.3 (probably *BSD): Avoid using GNU grep specific regexp handling
Fix "gmake check" under OpenBSD 6.3 (probably *BSD): Avoid using GNU grep specific regexp handling

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