Double assignment is still needed to prevent an "unused variable" war…

…ning

That warning is still raised on latest Ruby.

lib/rack/show_exceptions.rb

@@ -63,9 +63,13 @@ def dump_exception(exception)
     def pretty(env, exception)
       req = Rack::Request.new(env)
 
-      path = (req.script_name + req.path_info).squeeze("/")
+      # This double assignment is to prevent an "unused variable" warning.
+      # Yes, it is dumb, but I don't like Ruby yelling at me.
+      path = path = (req.script_name + req.path_info).squeeze("/")
 
-      frames = exception.backtrace.map { |line|
+      # This double assignment is to prevent an "unused variable" warning.
+      # Yes, it is dumb, but I don't like Ruby yelling at me.
+      frames = frames = exception.backtrace.map { |line|
         frame = OpenStruct.new
         if line =~ /(.*?):(\d+)(:in `(.*)')?/
           frame.filename = $1

lib/rack/show_status.rb

@@ -23,11 +23,15 @@ def call(env)
 
       # client or server error, or explicit message
       if (status.to_i >= 400 && empty) || env[RACK_SHOWSTATUS_DETAIL]
-        req = Rack::Request.new(env)
+        # This double assignment is to prevent an "unused variable" warning.
+        # Yes, it is dumb, but I don't like Ruby yelling at me.
+        req = req = Rack::Request.new(env)
 
         message = Rack::Utils::HTTP_STATUS_CODES[status.to_i] || status.to_s
 
-        detail = env[RACK_SHOWSTATUS_DETAIL] || message
+        # This double assignment is to prevent an "unused variable" warning.
+        # Yes, it is dumb, but I don't like Ruby yelling at me.
+        detail = detail = env[RACK_SHOWSTATUS_DETAIL] || message
 
         body = @template.result(binding)
         size = body.bytesize