stop uninitialized memory leaking into resource files.

Change-Id: I8659426dd4ea0c13c8ed839ef5cfb686e6648042
Reviewed-on: https://gerrit.libreoffice.org/3080Reviewed-by: Michael Meeks <michael.meeks@suse.com>
Tested-by: Michael Meeks <michael.meeks@suse.com>

rsc/source/tools/rsctools.cxx

@@ -377,7 +377,10 @@ sal_uInt32 RscWriteRc :: IncSize( sal_uInt32 nSize )
 char * RscWriteRc :: GetPointer( sal_uInt32 nSize )
 {
     if( !pMem )
+    {
         pMem = (char *)rtl_allocateMemory( nLen );
+        memset( pMem, 0, nLen );
+    }
     return( pMem + nSize );
 }