refactor: remove trailing whitespace from C, Header, Ruby and YAML files

Lint

test/t/integer.rb

@@ -28,7 +28,7 @@ assert('Integer#*', '15.2.8.3.3') do
   a = 1*1
   assert_equal 1, a
   if Object.const_defined?(:Float)
-    b = 1*1.0 
+    b = 1*1.0
     assert_equal 1.0, b
   end
   assert_raise(TypeError){ 0*nil }

test/t/range.rb

@@ -155,7 +155,7 @@ assert('Range#eql?', '15.2.14.4.14') do
   assert_false (1..).eql? "1.."
   skip unless Object.const_defined?(:Float)
   assert_false (1..10).eql? (Range.new(1.0, 10.0))
-  assert_false (1..).eql? (Range.new(1.0, nil)) 
+  assert_false (1..).eql? (Range.new(1.0, nil))
 end
 
 assert('Range#initialize_copy', '15.2.14.4.15') do