BUG/MINOR: http: url32+src should check cli_conn before using it

In function smp_fetch_url32_src(), it's better to check the value of
cli_conn before we go any further.

This patch needs to be backported to 1.6 and 1.5.
(cherry picked from commit db5af61f3cae7f937b56994c0b7c153f7ceeb366)
(cherry picked from commit 9fb2e8d874a44e820fad5e7bc4de39d0775a6dd8)
1 file changed