Fix integer overflow error in mrdb test
@@ -63,10 +63,7 @@ assert('mruby-bin-debugger(mrdb) command line') do
# ruby source
src = "foo = 'foo'\n"
- str = ""
- 103.times {
- str += "1234567890"
- }
+ str = ":#{'abcdefghij' * 103}"
cmd = "p a=#{str}"
# test case
