fix URL

Signed-off-by: Igor Gnatenko <ignatenkobrain@fedoraproject.org>

rust-threadpool.spec

@@ -10,7 +10,7 @@ Release:        2%{?dist}
 Summary:        Thread pool for running a number of jobs on a fixed set of worker threads
 
 License:        MIT or ASL 2.0
-URL:            https://crates.io/crates/threadpool/
+URL:            https://crates.io/crates/threadpool
 Source0:        https://crates.io/api/v1/crates/%{crate}/%{version}/download#/%{crate}-%{version}.crate
 
 ExclusiveArch:  %{rust_arches}