cotton-tail.gemspec in cotton-tail-0.1.1 vs cotton-tail.gemspec in cotton-tail-0.1.2

@@ -16,12 +16,12 @@
                           your services'
 
   spec.license       = 'MIT'
 
   spec.cert_chain  = ['certs/jamesbrennan.pem']
-  spec.signing_key = File.expand_path('~/.ssh/gem-private_key.pem') if $0 =~ /gem\z/
+  spec.signing_key = File.expand_path('~/.ssh/gem-private_key.pem') if $PROGRAM_NAME =~ /gem\z/
 
-  spec.files         = `git ls-files -z`.split("\x0").reject do |f|
+  spec.files = `git ls-files -z`.split("\x0").reject do |f|
     f.match(%r{^(test|spec|features|integration)/})
   end
 
   spec.bindir        = 'exe'
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }