# File lib/rake/application.rb, line 192 192: def deprecate(old_usage, new_usage, call_site) 193: unless options.ignore_deprecate 194: $stderr.puts "WARNING: '#{old_usage}' is deprecated. " + 195: "Please use '#{new_usage}' instead.\n" + 196: " at #{call_site}" 197: end 198: end