BUG/MINOR: sample: Fix output type of c_ipv62ip

c_ipv62ip failed to set the output type of the cast to SMP_T_IPV4
even for a successful conversion.

This bug exists as of commit cc4d1716a2e72516c2505a6459a9ddbbfb186da2
which is the first commit adding this function.

v1.6-dev4 is the first tag containing this commit, the fix should
be backported to haproxy 1.6 and newer.
1 file changed