Remove superfluous space in unabbrev error msg
Remove superfluous space in unabbrev error msg

choptastic/rebar,matwey/rebar,matwey/rebar,bsmr-erlang/rebar,matwey/rebar,matwey/rebar,norton/rebar,lrascao/rebar,K2InformaticsGmbH/rebar,paulo-ferraz-oliveira/rebar,norton/rebar,K2InformaticsGmbH/rebar,bsmr-erlang/rebar,matwey/rebar,bsmr-erlang/rebar,lrascao/rebar,choptastic/rebar,K2InformaticsGmbH/rebar,lrascao/rebar,K2InformaticsGmbH/rebar,apache/couchdb-rebar,lrascao/rebar,lrascao/rebar,bsmr-erlang/rebar,rebar/rebar,norton/rebar,apache/couchdb-rebar,apache/couchdb-rebar,paulo-ferraz-oliveira/rebar,rebar/rebar,rebar/rebar,choptastic/rebar,paulo-ferraz-oliveira/rebar,norton/rebar,K2InformaticsGmbH/rebar