Bump up copyright date to reflect recent fix time.
Bump up copyright date to reflect recent fix time.

ppcsuite/ppcd,dajohi/btcd,jrick/dcrd,ltcsuite/ltcd,btcsuite/btcrpcclient,aakselrod/btcd,Roasbeef/btcd,dajohi/btcd,decred/dcrd,aakselrod/btcd,Stash-Crypto/btcd,Stash-Crypto/btcd,jrick/btcd,davecgh/btcd,wallclockbuilder/btcd,ppcsuite/ppcd,aakselrod/btcrpcclient,davecgh/btcd,btcsuite/btcd,wallclockbuilder/btcd,aakselrod/btcrpcclient,jrick/dcrd,jrick/btcrpcclient,Roasbeef/btcd,dajohi/btcd,decred/dcrd,btcsuite/btcrpcclient,btcsuite/btcd,jrick/btcd,tb00/btcd,jrick/btcd,tb00/btcd,ltcsuite/ltcd,jrick/btcrpcclient