Allow test.sh to take arg: name of test to start with

Signed-off-by: Rusty Russel <rusty@rustcorp.com.au>
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>

tools/xenstore/testsuite/test.sh

@@ -33,7 +33,10 @@ run_test()
     fi
 }
 
+MATCH=${1:-"*"}
 for f in testsuite/[0-9]*.sh; do
+    case `basename $f` in $MATCH) RUN=1;; esac
+    [ -n "$RUN" ] || continue
     if run_test $f; then
 	echo Test $f passed...
     else