Fix interrupt error whilst awaiting input

Author: rastating

lib/cli/console.rb

@@ -65,7 +65,12 @@ def prompt_for_input
       prompt += " [#{context.module_path}]" if context
       prompt += ' > '
 
-      input = Readline.readline(prompt, true).to_s
+      begin
+        input = Readline.readline(prompt, true).to_s
+      rescue SignalException
+        input = ''
+      end
+
       puts if input.empty?
       input
     end