Factoryauto name detection fix

OBS-URL: https://build.opensuse.org/package/show/devel:languages:lua/lua-luarocks?expand=0&rev=5

lua-luarocks.spec

@@ -20,7 +20,6 @@
 %define flavor @BUILD_FLAVOR@
 %define mod_name luarocks
 %define lua_value  %(echo "%{flavor}" |sed -e 's:lua::')
-Name:           %{flavor}-%{mod_name}
 Version:        2.4.2
 Release:        0
 Summary:        A deployment and management system for Lua modules
@@ -38,10 +37,12 @@ Requires:       openssl
 Requires:       unzip
 BuildArch:      noarch
 %if "%{flavor}" == ""
+Name:           lua-%{mod_name}
 ExclusiveArch:  do_not_build
+%else
+Name:           %{flavor}-%{mod_name}
 %endif
 
-
 %description
 LuaRocks allows you to install Lua modules as self-contained packages
 called "rocks", which also contain version dependency