Bug 5392 Initialize vars used in building url strings

Bug 5392 Initialize vars used in building url strings

If no failures are to be added to the to the strings for redirect
the corresponding variables are undefined causing warnings
to be logged. Initialize them so that the error log is not
being filled with trivia.

Signed-off-by: Galen Charlton <gmcharlt@gmail.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>
(cherry picked from commit bd93bfdbc4087166369ac0e7dbc146cb199ecceb)

Signed-off-by: Chris Nighswonger <chris.nighswonger@gmail.com>