libjava_invoke: Log the invocation

[Andrew Haley]

When a test fails, the testsuite log doesn't record what was actually
being tested.  Go figure...

2007-08-09  Andrew Haley  <aph@redhat.com>

        * testsuite/lib/libjava.exp (libjava_invoke): Log the invocation.

Index: testsuite/lib/libjava.exp
===================================================================
--- testsuite/lib/libjava.exp   (revision 127266)
+++ testsuite/lib/libjava.exp   (working copy)
@@ -572,6 +572,8 @@
        return 1
     }
 
+    send_log "invoke: $executable $args $inpfile\n"
+
     set result [libjava_load $executable $args "$inpfile"]
     set status [lindex $result 0]
     set output [lindex $result 1]