Even if the labels.txt file is read as UTF-8 apparantly after a label is
symoblized, it will be US-ASCII on .to_s if possible. This patch forces
UTF-8.

If you use L to select a US-ASCII label (i.e. Sent) then want to narrow
the search by pressing L again and use tab to match against an UTF-8
label sup crashes.

Also fixes one whitespace error in bin/sup
---
 bin/sup           |    4 +++-
 lib/sup/buffer.rb |    2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/bin/sup b/bin/sup
index fd1dde8..10be161 100755
--- a/bin/sup
+++ b/bin/sup
@@ -49,7 +49,7 @@ No variables.
 No return value.
 EOS
 
-Redwood::HookManager.register "shutdown", <<EOS 
+Redwood::HookManager.register "shutdown", <<EOS
 Executes when sup is shutting down. May be run when sup is crashing,
 so don\'t do anything too important. Run before the label, contacts,
 and people are saved.
@@ -299,6 +299,8 @@ begin
       SearchResultsMode.spawn_from_query "is:unread"
     when :list_labels
       labels = LabelManager.all_labels.map { |l| LabelManager.string_for l }
+      labels = labels.each { |l| l.force_encoding 'UTF-8' if l.methods.include?(:encoding) }
+
       user_label = bm.ask_with_completions :label, "Show threads with label (enter for listing): ", labels
       unless user_label.nil?
         if user_label.empty?
diff --git a/lib/sup/buffer.rb b/lib/sup/buffer.rb
index f3cfb8a..c36ca56 100644
--- a/lib/sup/buffer.rb
+++ b/lib/sup/buffer.rb
@@ -454,7 +454,7 @@ EOS
   def ask_with_completions domain, question, completions, default=nil
     ask domain, question, default do |s|
       s.force_encoding 'UTF-8' if s.methods.include?(:encoding)
-      completions.select { |x| x =~ /^#{Regexp::escape s}/i }.map { |x| [x, x] }
+      completions.select { |x| x =~ /^#{Regexp::escape s}/iu }.map { |x| [x, x] }
     end
   end
 
-- 
1.7.3.2