Require 'openssl', as OpenSSL is used as a constant. Fixes rdf-tabular#5.

gkellogg · gkellogg · commit afd59821d5d6 · 2017-03-16T11:47:01.000-07:00
diff --git a/lib/rdf/util/file.rb b/lib/rdf/util/file.rb
@@ -1,6 +1,7 @@
 require 'net/http'
 require 'link_header'
 require 'time'
+require 'openssl'
 
 module RDF; module Util
   ##
