Fix CheckBreakpoint#to_s

Author: st0012

lib/debug/breakpoint.rb

@@ -329,9 +329,8 @@ def setup
     end
 
     def to_s
-      s = "#{generate_label("Check")} #{@cond}"
-      s << " pre: #{@command[1]}" if defined?(@command) && @command && @command[1]
-      s << " do: #{@command[2]}"  if defined?(@command) && @command && @command[2]
+      s = "#{generate_label("Check")}"
+      s += super
       s
     end
   end

test/debug/break_test.rb

@@ -443,7 +443,7 @@ def test_break_command_executes_do_option_and_continues_with_method_bp
     def test_break_command_executes_do_option_and_continues_with_check_bp
       debug_code(program) do
         type 'break if: s.is_a?(String) do: p "foobar"'
-        assert_line_text(/BP - Check  s\.is_a\?\(String\) do: p "foobar"/)
+        assert_line_text(/BP - Check  if: s\.is_a\?\(String\) do: p "foobar"/)
         type 'break 9'
         type 'c'
         assert_line_text(/foobar/)
@@ -633,7 +633,7 @@ def program
     def test_conditional_breakpoint_stops_if_condition_is_true
       debug_code program do
         type 'break if: a == 4'
-        assert_line_text(/#0  BP - Check  a == 4/)
+        assert_line_text(/#0  BP - Check  if: a == 4/)
         type 'c'
         assert_line_num 4
         type 'c'