[spec] Fix problems with trailing newlines for compressed output

spec/rails_spec.rb

@@ -35,6 +35,7 @@
 
   it 'compress the output if Rails is configured to compress them too' do
     result = fixture(:compressed).last
+    result.rstrip!  # because of modern text editors automatically adding new lines at the end of file
 
     app = create_app(:compress => true)
     app.assets['compressed'].to_s.should == result

spec/stylus_spec.rb

@@ -14,12 +14,14 @@
 
   it 'compress the file when the "compress" flag is given' do
     input, output = fixture(:compressed)
+    output.rstrip! # because of modern text editors automatically adding new lines at the end of file
     expect(Stylus.compile(input, compress: true)).to eq(output)
   end
 
   it 'handles the compress flag globally' do
     Stylus.compress = true
     input, output = fixture(:compressed)
+    output.rstrip! # because of modern text editors automatically adding new lines at the end of file
     expect(Stylus.compile(input)).to eq(output)
   end
 

spec/tilt/stylus_spec.rb

@@ -19,6 +19,7 @@
   it 'compiles with the compress option' do
     input, output = fixture(:compressed)
     template = Tilt::StylusTemplate.new(compress: true) { |_| input }
+    output.rstrip!  # because of modern text editors automatically adding new lines at the end of file
     expect(template.render).to eq(output)
   end
 end