File fix_bsc_959129_mail_2.4.4.patch of Package rubygem-mail-2_4

diff --git a/lib/mail/field.rb.orig b/lib/mail/field.rb
index 0c539d0..c9a653c 100644
--- a/lib/mail/field.rb.orig
+++ b/lib/mail/field.rb
@@ -150,8 +150,13 @@ module Mail
     rescue
       STDERR.puts "WARNING: Could not parse (and so ignorning) '#{raw_field}'"
     end
-    
+
+    def unfold(string)
+      string.gsub(/[\r\n \t]+/m, ' ')
+    end
+
     def create_field(name, value, charset)
+      value = unfold(value) if value.is_a?(String)
       begin
         self.field = new_field(name, value, charset)
       rescue Mail::Field::ParseError => e