Clean up trailing whitespaces

3 files changed, 3 insertions, 3 deletions

diff --git a/book/diagram/overview.svg b/book/diagram/overview.svg
index c5516875..e5154668 100644
--- a/book/diagram/overview.svg
+++ b/book/diagram/overview.svg
@@ -68,7 +68,7 @@
                             marker-start: url(#big_open_circle);
                          }
 
-                         
+
                         </style>
     <defs>
         <marker id="arrow" viewBox="-2 -2 8 8" refX="4" refY="2" markerWidth="7" markerHeight="7" orient="auto-start-reverse">
diff --git a/book/src/binding/sharedptr.md b/book/src/binding/sharedptr.md
index 8f494aef..a3b70700 100644
--- a/book/src/binding/sharedptr.md
+++ b/book/src/binding/sharedptr.md
@@ -37,7 +37,7 @@ fn main() {
     {
         // Create a second shared_ptr holding shared ownership of the same
         // object. There is still only one Object but two SharedPtr<Object>.
-        // Both pointers point to the same object on the heap. 
+        // Both pointers point to the same object on the heap.
         let ptr2 = ptr1.clone();
         assert!(ptr::eq(ptr1.deref(), ptr2.deref()));
 
diff --git a/book/src/binding/vec.md b/book/src/binding/vec.md
index 4c9c939c..39c1da19 100644
--- a/book/src/binding/vec.md
+++ b/book/src/binding/vec.md
@@ -31,7 +31,7 @@ public:
   const T *data() const noexcept;
   T *data() noexcept;
   size_t capacity() const noexcept;
-  
+
   const T &operator[](size_t n) const noexcept;
   const T &at(size_t n) const;
   const T &front() const;