BUG/MINOR: http-rules: Fix a typo in the reject action function

A typo was introduced by the commit c5bb5a0f2 ("BUG/MINOR: http-rules: Preserve
FLT_END analyzers on reject action").

This patch must be backported with the commit c5bb5a0f2.

(cherry picked from commit d4a824e533ef940e9726dbf3d3f94993d97d6391)
Signed-off-by: Willy Tarreau <w@1wt.eu>
(cherry picked from commit d9ac0f8ae9aec55f2d5ecac6e9c8b48b92de6246)
Signed-off-by: Willy Tarreau <w@1wt.eu>
1 file changed