fix that must be submitted to the upstream maintainer
--- a/tthgold/tthprep
+++ b/tthgold/tthprep
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/bin/sh
 # IHH Feb 2001
 #Prepare for tth conversion by running latex on kludged file.
 #Needs a safety check
