scripted-diff: Remove trailing whitespaces

-BEGIN VERIFY SCRIPT-

sed --in-place'' --regexp-extended 's/[[:space:]]+$//g' $(git grep -I --files-with-matches --extended-regexp '[[:space:]]+$' -- src test  ':!*.svg' ':!src/crypto/sha256_sse4*' ':!src/leveldb' ':!src/qt/locale' ':!src/secp256k1' ':!src/univalue')

-END VERIFY SCRIPT-

src/reverse_iterator.h

@@ -5,7 +5,7 @@
 
 /**
  * Template used for reverse iteration in C++11 range-based for loops.
- * 
+ *
  *   std::vector<int> v = {1, 2, 3, 4, 5};
  *   for (auto x : reverse_iterate(v))
  *       std::cout << x << " ";
@@ -15,21 +15,21 @@ template <typename T>
 class reverse_range
 {
     T &m_x;
-    
+
 public:
     explicit reverse_range(T &x) : m_x(x) {}
-    
+
     auto begin() const -> decltype(this->m_x.rbegin())
     {
         return m_x.rbegin();
     }
-    
+
     auto end() const -> decltype(this->m_x.rend())
     {
         return m_x.rend();
     }
 };
- 
+
 template <typename T>
 reverse_range<T> reverse_iterate(T &x)
 {