rb_write_error2   104 error.c            rb_write_error2(buf, len);
rb_write_error2   147 error.c            rb_write_error2(buf, len);
rb_write_error2    19 eval_error.c   #define warn_print2(x,l) rb_write_error2(x,l)
rb_write_error2   415 include/ruby/intern.h void rb_write_error2(const char*, long);
rb_write_error2  5772 io.c               rb_write_error2(mesg, strlen(mesg));