Don't just log the file name, at least say what we are doing with it

Change-Id: I9ff0b4287c5be0dfc83740b75d58cab78dc990f7

tools/source/stream/strmunx.cxx

@@ -542,7 +542,7 @@ void SvFileStream::Close()
 
     if ( IsOpen() )
     {
-        SAL_INFO("tools", aFilename);
+        SAL_INFO("tools", "Closing " << aFilename);
         Flush();
         osl_closeFile( pInstanceData->rHandle );
         pInstanceData->rHandle = nullptr;