BUG/MINOR: spoe: Initialize variables used during conf parsing before any check

Some initializations must be done at the beginning of parse_spoe_flt to avoid
segmentaion fault when first errors are catched, when the "filter spoe" line is
parsed.

This patch must be backported in 1.8.
[cf: the variable "curvars" doesn't exist in 1.8. So the patch must be adapted.]
1 file changed