case-insensitive content-type detection

Apparently some mailers uppercase their shit. E.g.:
Content-type: text/plain; Format=Flowed; Charset=iso-8859-1

diff --git a/lib/sup/util.rb b/lib/sup/util.rb
index 47bc1c21402a6c8a06f6f54d46c6e0440caa47f8..ceaf0b8dabc8a83ea451005e9b27bc109823caf1 100644 (file)
--- a/lib/sup/util.rb
+++ b/lib/sup/util.rb
@@ -62,7 +62,7 @@ module RMail
     end
 
     def charset
-      if header.field?("content-type") && header.fetch("content-type") =~ /charset="?(.*?)"?(;|$)/
+      if header.field?("content-type") && header.fetch("content-type") =~ /charset="?(.*?)"?(;|$)/i
         $1
       end
     end