Change LookupCLILocal errors to be less misleading (#13734)
Change LookupCLILocal errors to be less misleading (#13734)

Previously it was unknown to the caller (the user of "keybase lookup"
command, most likely) if the assertion was resolved to a user without
Stellar account, of if the assertion did not resolve at all.
keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client