[PATCH] [REVIEW:3-5] fdo#47325 legacy reports from 3.4 or earlier fail to open

[Lionel Elie Mamane]

Legacy reports (not Sun/Oracle Report Builder ones) created by
LibreOffice 3.4 or earlier fail to open in LibreOffice 3.5 and later:
show empty data.

That's because LibreOffice 3.5 expects a hidden control named
"Sorting" to be present; but older versions did not create it.

Attached patch fixes that to cleanly catch the exception and act
accordingly. Please apply to libreoffice-3-5 branch.

-- 
Lionel