testsuite: shorter output

test_with_title_wrap_text_in_a_box (invenio.testsuite.test_utils_text.WrapTextInABoxTest)
textutils - wrap_text_in_a_box with title. ... ok

becomes:

textutils - wrap_text_in_a_box with title. ... ok

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>