Make this usable on Ubuntu by explicitly specifying bash rather than dash.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11044 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/auxprogs/gsl19test b/auxprogs/gsl19test
index 0491347..4b1d140 100755
--- a/auxprogs/gsl19test
+++ b/auxprogs/gsl19test
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 # Do an automated test which involves building and regtesting version
 # 1.9 of the GNU Scientific Library (gsl).  This has proven to be a