Actually download tarball directly from URL

OBS-URL: https://build.opensuse.org/package/show/devel:languages:lua/lua-dkjson?expand=0&rev=2

dkjson.tar.gz

@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:10e20443c3035284def68425170f42fdd30d4db52704138e18014ba2466a6d20
-size 15883
+oid sha256:dd7f3eb7120df085c205451a3e7faa7de8e61ff8dcb432322583d9133a8af118
+size 15891

lua-dkjson.spec

@@ -17,7 +17,6 @@
 
 
 %define flavor @BUILD_FLAVOR@
-# %%define flavor lua51
 %define mod_name dkjson
 %define uptag    release_2_5
 Version:        2.5.2
@@ -26,8 +25,7 @@ Summary:        A feature-rich command-line argument parser
 License:        MIT
 Group:          Development/Libraries/Other
 Url:            http://dkjson.org/
-# Source:         http://dkolf.de/src/dkjson-lua.fsl/tarball/dkjson.tar.gz?r=%%{uptag}
-Source:         dkjson.tar.gz
+Source:         http://dkolf.de/src/dkjson-lua.fsl/tarball/%{uptag}/dkjson.tar.gz
 BuildRequires:  %{flavor}-devel
 BuildArch:      noarch
 Requires:       %{flavor}
@@ -44,15 +42,14 @@ Argparse supports positional arguments, options, flags, optional
 arguments, subcommands and more. Argparse automatically generates usage,
 help, and error messages, and can generate shell completion scripts.
 
-
 %prep
-%setup -q -n %{mod_name}
+%setup -q -n %{uptag}/%{mod_name}
 
 %build
 /bin/true
 
 %install
-install -v -D -m 0644 -t %{buildroot}%{lua_noarchdir} -p dkjson.lua
+install -D -m 0644 -t %{buildroot}%{lua_noarchdir} -p dkjson.lua
 
 %check
 lua%{lua_version} speedtest.lua dkjson