fix variable name in contrib/sign_version
fix variable name in contrib/sign_version

neocogent/electrum,pooler/electrum-ltc,spesmilo/electrum,wakiyamap/electrum-mona,vialectrum/vialectrum,spesmilo/electrum,wakiyamap/electrum-mona,fujicoin/electrum-fjc,spesmilo/electrum,spesmilo/electrum,pooler/electrum-ltc,pooler/electrum-ltc,neocogent/electrum,vialectrum/vialectrum,fujicoin/electrum-fjc,fujicoin/electrum-fjc,vialectrum/vialectrum,pooler/electrum-ltc,wakiyamap/electrum-mona,wakiyamap/electrum-mona,neocogent/electrum