rb_find_file_ext  344 include/ruby/intern.h int rb_find_file_ext(VALUE*, const char* const*);
rb_find_file_ext  465 load.c         	    if (rb_find_file_ext(&tmp, loadable_ext + 1)) {
rb_find_file_ext  500 load.c             type = rb_find_file_ext(&tmp, loadable_ext);