README.md in subprocess-0.15 vs README.md in subprocess-0.16

@@ -42,31 +42,31 @@
 Check user's animal allegiances:
 
 ```ruby
 begin
   Subprocess.check_call(['grep', '-q', 'llamas', '~/favorite_animals'])
-rescue NonZeroExit => e
+rescue Subprocess::NonZeroExit => e
   puts e.message
   puts "Why aren't llamas one of your favorite animals?"
 end
 ```
 
 Parse the output of `uptime(1)` to find the system's load:
 
 ```ruby
-load = Subprocess.check_output(['uptime']).split(' ').last(3)
+system_load = Subprocess.check_output(['uptime']).split(' ').last(3)
 ```
 
 Send mail to your friends with `sendmail(1)`:
 
 ```ruby
-Subprocess.check_call(%W{sendmail -t},
-    :stdin => Subprocess::PIPE, :stdout => Subprocess::PIPE) do |p|
+Subprocess.check_call(%W{sendmail -t}, :stdin => Subprocess::PIPE) do |p|
   p.communicate <<-EMAIL
 From: [e-mail]
 To: [e-mail]
 Subject: I am so fluffy.
 
-I'm going to die.
+SO FLUFFY!
+http://upload.wikimedia.org/wikipedia/commons/3/3e/Unshorn_alpaca_grazing.jpg
   EMAIL
 end
 ```