detect if Standard is only library to *save*

as opposed to only library at all

Change-Id: I23bebfe7d156e1f4a60bc5f265a3cf9d295f3e4a
Reviewed-on: https://gerrit.libreoffice.org/11275
Reviewed-by: Norbert Thiebaud <nthiebaud@gmail.com>
Tested-by: Norbert Thiebaud <nthiebaud@gmail.com>
diff --git a/basic/source/uno/namecont.cxx b/basic/source/uno/namecont.cxx
index 69ba278..abdd3d5 100644
--- a/basic/source/uno/namecont.cxx
+++ b/basic/source/uno/namecont.cxx
@@ -1810,7 +1810,7 @@ void SfxLibraryContainer::storeLibraries_Impl( const uno::Reference< embed::XSto
    if ( bStorage )
    {
        // Don't write if only empty standard lib exists
        if ( ( nNameCount == 1 ) && ( aNames[0] == "Standard" ) )
        if ( ( nLibsToSave == 1 ) && ( aNames[0] == "Standard" ) )
        {
            Any aLibAny = maNameContainer.getByName( aNames[0] );
            Reference< XNameAccess > xNameAccess;