logilab-common #277372 ureports is broken when using an io.StringIO as stream [validation pending]

there should be only unicode objects

prioritynormal
typebug
done in0.63.1
load left0.000
closed by#5944536a865c [ureports] write unicode not bytes (closes #277372)
patch[ureports] write unicode not bytes (closes #277372) [applied]