busted loop condition

regression from

commit 11987332
Date:   Thu Oct 21 15:34:02 2010 -0500
    convert vos/process.hxx and related API

Change-Id: I36527a4f0109105b9853a79773b4c92f9bc4e902

basic/source/runtime/methods.cxx

@@ -3716,10 +3716,9 @@ RTLFUNC(Shell)
             osl_freeProcessHandle( pApp );
         }
 
-        for(int j = 0; i < nParamCount; i++)
+        for(int j = 0; j < nParamCount; ++j)
         {
             rtl_uString_release(pParamList[j]);
-            pParamList[j] = NULL;
         }
 
         delete [] pParamList;