Set the shebang to '/usr/bin/wish' for those example files
that carry a shebang line.
--- a/tests/multi/auto.tcl
+++ b/tests/multi/auto.tcl
@@ -1,4 +1,4 @@
-#!/usr/local/bin/wish8.4
+#!/usr/bin/wish
 
 package require TclCurl
 
--- a/tests/multi/autoGUI.tcl
+++ b/tests/multi/autoGUI.tcl
@@ -1,4 +1,4 @@
-#!/usr/local/bin/wish8.4
+#!/usr/bin/wish
 
 package require TclCurl
 
--- a/tests/multi/cancelTrans.tcl
+++ b/tests/multi/cancelTrans.tcl
@@ -1,4 +1,4 @@
-#!/usr/local/bin/wish8.4
+#!/usr/bin/wish
 
 package require TclCurl