Fixed non-sensical error message
Fixed non-sensical error message

Previously trying to create a multisig address that required less than
one signature would output something like the following:

"wrong number of keys(got 1, need at least 0)"

Crowndev/crowncoin,Crowndev/crowncoin,dobbscoin/dobbscoin-source,domob1812/crowncoin,wiggi/fairbrix-0.6.3,domob1812/crowncoin,syscoin/syscoin,Earlz/dobbscoin-source,Earlz/dobbscoin-source,domob1812/crowncoin,syscoin/syscoin,wiggi/fairbrix-0.6.3,domob1812/crowncoin,dobbscoin/dobbscoin-source,wiggi/fairbrix-0.6.3,wiggi/fairbrix-0.6.3,Crowndev/crowncoin,domob1812/crowncoin,dobbscoin/dobbscoin-source,syscoin/syscoin,syscoin/syscoin,Infernoman/crowncoin,Earlz/dobbscoin-source,syscoin/syscoin,syscoin/syscoin,Earlz/dobbscoin-source,dobbscoin/dobbscoin-source,wiggi/fairbrix-0.6.3,Crowndev/crowncoin,Earlz/dobbscoin-source,Crowndev/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Infernoman/crowncoin,Crowndev/crowncoin,syscoin/syscoin,Infernoman/crowncoin,Earlz/dobbscoin-source,dobbscoin/dobbscoin-source,Infernoman/crowncoin,Infernoman/crowncoin,dobbscoin/dobbscoin-source,domob1812/crowncoin