Downgrade a SAL_WARN() that shows up a lot but can be ignored to SAL_INFO()

Quikee said it was OK.

Change-Id: I8f45d3c5e264f5658985399487e9c6e2a3fbced3

svgio/source/svguno/xsvgparser.cxx

@@ -137,7 +137,7 @@ namespace svgio
             }
             catch(const uno::Exception& e)
             {
-                SAL_WARN( "svg", "Parse error! : " << e);
+                SAL_INFO( "svg", "Parse error: " << e);
                 return false;
             }