Use https links instead of http (#274)

Author: apatniv

lib/csv.rb

@@ -70,7 +70,7 @@
 # == What is CSV, really?
 #
 # CSV maintains a pretty strict definition of CSV taken directly from
-# {the RFC}[http://www.ietf.org/rfc/rfc4180.txt]. I relax the rules in only one
+# {the RFC}[https://www.ietf.org/rfc/rfc4180.txt]. I relax the rules in only one
 # place and that is to make using this library easier. CSV will parse all valid
 # CSV.
 #

test/csv/parse/test_general.rb

@@ -7,7 +7,7 @@
 
 #
 # Following tests are my interpretation of the
-# {CSV RCF}[http://www.ietf.org/rfc/rfc4180.txt].  I only deviate from that
+# {CSV RCF}[https://www.ietf.org/rfc/rfc4180.txt].  I only deviate from that
 # document in one place (intentionally) and that is to make the default row
 # separator <tt>$/</tt>.
 #
@@ -75,7 +75,7 @@ def test_std_lib_csv
     end
   end
 
-  # From:  http://ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-core/6496
+  # From:  https://ruby-talk.org/cgi-bin/scat.rb/ruby/ruby-core/6496
   def test_aras_edge_cases
     [ [%Q{a,b},               ["a", "b"]],
       [%Q{a,"""b"""},         ["a", "\"b\""]],