Improve conflict error message of mruby-bin-debugger; ref
#define MRDBCONF_H
#ifndef MRB_ENABLE_DEBUG_HOOK
-# error Need 'MRB_ENABLE_DEBUG_HOOK' configuration in your 'build_config.rb'
+# error mruby-bin-debugger need 'MRB_ENABLE_DEBUG_HOOK' configuration in your 'build_config.rb'
#endif
/* configuration options: */
