opentelemetry_req: Don't assume `request.options` is a map (#192)

instrumentation/opentelemetry_req/lib/opentelemetry_req.ex

@@ -209,15 +209,11 @@ defmodule OpentelemetryReq do
   end
 
   defp require_path_params_option(request) do
-    unless request.options[:no_path_params] do
-      unless Map.has_key?(request.options, :path_params) do
+    if !request.options[:no_path_params] and !request.options[:path_params] do
       {Req.Request.halt(request), __MODULE__.PathParamsOptionError.new()}
     else
       request
     end
-    else
-      request
-    end
   end
 
   defmodule PathParamsOptionError do
@@ -229,7 +225,7 @@ defmodule OpentelemetryReq do
 
     @impl true
     def message(_) do
-      "req_path_params path parameter options must be provided"
+      ":path_params option must be set"
     end
   end
 end