Add a missing #!/bin/sh to one test

debian/changelog

@@ -36,6 +36,7 @@ ostree (2016.3-1) UNRELEASED; urgency=medium
     for example if it is on tmpfs
   * Stop dh_makeshlibs thinking that the LD_PRELOAD module libreaddir-rand.so
     (part of the tests) is meant to be a shared library
+  * Add a missing #!/bin/sh to one test
 
  -- Simon McVittie <smcv@debian.org>  Wed, 27 Jan 2016 13:04:34 +0100