add extra/onemore scenario

test/stub/extra/onemore.bash

@@ -0,0 +1,21 @@
+#!/usr/bin/env miaou-bash
+#!/usr/bin/env bash
+
+function onemore {
+  echo onemore loaded
+  >&2 echo stderr from onemore
+  do_next
+}
+
+function do_next {
+  echo do_next
+  command_not_found
+  grep nope nope
+  exit
+  exit 10 # youpi
+  echo $nope
+  return 7
+  return
+}
+
+onemore