Remove superfluous whitespace. Add scratchpad* to ignore.

.gitignore

@@ -1,4 +1,5 @@
 coverage/
 .pigeon/
 *.pigeon
-doc/
+doc/
+scratchpad*

spec/pigeon/message_spec.rb

@@ -39,7 +39,7 @@ RSpec.describe Pigeon::Message do
       "a:\"bar\"",
       "b:&6462a5f5174b53702fc25afe67a8f9a29f572610a65bafefff627531552f096f.sha256",
       "",
-      "signature __SIGNATURE__ \n",
+      "signature __SIGNATURE__",
     ].join("\n")
       .gsub("__AUTHOR__", message.author.public_key)
       .gsub("__SIGNATURE__", message.signature)

spec/pigeon/template_spec.rb

@@ -8,7 +8,7 @@ RSpec.describe Pigeon::Serializer do
               "\nprev NONE",
               "\ndepth 23",
               "\n\nfoo:\"bar\"\n\n"].join("")
-  BOTTOM_HALF = "signature XYZ.sig.sha256 \n"
+  BOTTOM_HALF = "signature XYZ.sig.sha256"
   EXPECTED_DRAFT = TOP_HALF + BOTTOM_HALF
 
   class FakeKeypair

views/3_footer.erb

@@ -1,2 +1 @@
-<% if signature %>signature <%= signature %> <% else %>signature UNSIGNED<% end %>
-
+<% if signature %>signature <%= signature %><% else %>signature UNSIGNED<% end %>