Attachment model clean up: fixed some inconsistent indentation and an inaccurate comment (closes patch #903 by Rocco Stanzione).

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1321 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/attachment.rb

@@ -35,9 +35,9 @@ class Attachment < ActiveRecord::Base
     errors.add_to_base :too_long if self.filesize > Setting.attachment_max_size.to_i.kilobytes
   end
 
-	def file=(incomming_file)
+  def file=(incoming_file)
-		unless incomming_file.nil?
+    unless incoming_file.nil?
-			@temp_file = incomming_file
+      @temp_file = incoming_file
       if @temp_file.size > 0
         self.filename = sanitize_filename(@temp_file.original_filename)
         self.disk_filename = DateTime.now.strftime("%y%m%d%H%M%S") + "_" + self.filename
@@ -87,7 +87,7 @@ class Attachment < ActiveRecord::Base
   end
   
   def image?
-    self.filename =~ /\.(jpeg|jpg|gif|png)$/i
+    self.filename =~ /\.(jpe?g|gif|png)$/i
   end
   
 private
@@ -97,8 +97,7 @@ private
     # NOTE: File.basename doesn't work right with Windows paths on Unix
     # INCORRECT: just_filename = File.basename(value.gsub('\\\\', '/')) 
 
-      # Finally, replace all non alphanumeric, underscore or periods with underscore
+    # Finally, replace all non alphanumeric, hyphens or periods with underscore
     @filename = just_filename.gsub(/[^\w\.\-]/,'_') 
   end
-    
 end