# File lib/net/ssh/known_hosts.rb, line 52
52:       def add(host, key, options={})
53:         hostfiles(options, :user).each do |file|
54:           begin
55:             KnownHosts.new(file).add(host, key)
56:             return
57:           rescue SystemCallError
58:             # try the next hostfile
59:           end
60:         end
61:       end