Fixed get_paths situation where Windows directory path doesn't end with '/'.

radixcore/system.cc

@@ -292,6 +292,11 @@ bool get_paths(const std::string &spec, std::vector<std::string> &paths,
       (radix::dir_exists(spec)) ? spec : radix::dirname(spec);
   if (native_dir.compare(".") != 0)
   {
+    // check last character to ensure '/'
+    if (*native_dir.end() != '/')
+    {
+      native_dir = native_dir + "/";
+    }
     for (size_t i = 0; i < paths.size(); ++i)
     {
       radix_tagged_line("Concatenating: " << native_dir << " and " << paths[i]);