shopify-scripts: Null pointer dereference in mrb_str_prepend

PoC ruby String.new.prepend"" Cause This crash is caused by null dereference in https://github.com/mruby/mruby/blob/master/mrbgems/mruby-string-ext/src/string.cL474 Test $ gdb -q --args ./bin/mruby test4.rb Reading symbols from ./bin/mruby...done. gdb r Starting program:...