test a few easy to hit pubkey error paths.
test a few easy to hit pubkey error paths.

hectorj/btcd,aakselrod/btcd,pkothbauer/btcd,Cleawing/btcd,cjepson/btcd,tb00/btcd,btcsuitereleases/btcd,adiabat/btcd,jcmincke/dcrd,adiabat/btcd,jimmysong/btcd,tb00/btcd,Roasbeef/btcd,jongillham/btcd,Dirbaio/btcd,toddfries/btcd,stevenroose/btcd,davecgh/btcd,dajohi/btcd,glv2/ppcd,ppcsuite/ppcd,ppcsuite/ppcd-old,dan-da/btcd,aakselrod/btcd,Roasbeef/btcd,1d4Nf6/btcd,Dirbaio/btcd,toddfries/btcd,jrick/btcd,mathiasrw/btcd,jrick/btcd,jcmincke/dcrd,qchain/btcd,btcsuitereleases/btcd,qchain/btcd,ltcsuite/ltcd,Stash-Crypto/btcd,cqswxj2013/btcd,runeaune/btcd,soapboxsys/ombfullnode,CryptocurrencyCabal/htcd,davecgh/btcd,BitGo/prova,DanielKrawisz/btcd,DanielKrawisz/btcd,Cleawing/btcd,stevenroose/btcd,1d4Nf6/btcd,jrick/dcrd,ppcsuite/ppcd-old,cjepson/btcd,mathiasrw/btcd,ltcsuite/ltcd,FactomProject/btcd,dan-da/btcd,FactomProject/btcd,decred/dcrd,Dirbaio/btcd,dajohi/btcd,jrick/btcd,decred/dcrd,pkothbauer/btcd,Stash-Crypto/btcd,wallclockbuilder/btcd,danoctavian/btcd,btcsuite/btcd,jrick/dcrd,jimmysong/btcd,wallclockbuilder/btcd,jongillham/btcd,cqswxj2013/btcd,ppcsuite/ppcd,CryptocurrencyCabal/htcd,glv2/ppcd,hectorj/btcd,dajohi/btcd,runeaune/btcd,jcmincke/dcrd,danoctavian/btcd,BitGo/prova,btcsuite/btcd,soapboxsys/ombfullnode