Fix comment typo noticed by jrick@
Fix comment typo noticed by jrick@

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