call: fix bug in path handling, the end path of a gerrit api was accidentally removed.
call: fix bug in path handling, the end path of a gerrit api was accidentally removed.

Signed-off-by: Silvio Fricke <f2b81419e41c7651e2106cca3df3958aa3b28c36@gmail.com>

silvio/gerrit-rust,silvio/gerrit-rust