Trim trailing whitespace

Author: alexcrichton

_posts/2016-03-02-Rust-1.7.md

@@ -31,7 +31,7 @@ default. SipHash, however, is [not very fast] at hashing small keys. As shown,
 however, the [FNV hash algorithm] is much faster for these size of inputs. This
 means that by switching hash algorithms for types like `HashMap<usize, V>`
 there can be a significant speedup so long as the loss of DOS protection is
-acceptable. 
+acceptable.
 
 [Siphash]: https://en.wikipedia.org/wiki/SipHash
 [not very fast]: http://cglab.ca/~abeinges/blah/hash-rs/
@@ -43,16 +43,16 @@ create a `HashMap` via:
 ```rust
 extern crate fnv;
 
-use std::collections::HashMap;                            
-use std::hash::BuildHasherDefault;                        
-use fnv::FnvHasher;                                       
-                                                          
-type MyHasher = BuildHasherDefault<FnvHasher>;            
-                                                          
+use std::collections::HashMap;
+use std::hash::BuildHasherDefault;
+use fnv::FnvHasher;
+
+type MyHasher = BuildHasherDefault<FnvHasher>;
+
 fn main() {
     let mut map: HashMap<_, _, MyHasher> = HashMap::default();
-    map.insert(1, "Hello");                                   
-    map.insert(2, ", world!");                                
+    map.insert(1, "Hello");
+    map.insert(2, ", world!");
     println!("{:?}", map);
 }
 ```
@@ -94,8 +94,8 @@ There were a few small updates to Cargo:
   profiles to pull in dev-dependencies during testing and such.
 
 
-[improvement to build scripts]: https://github.com/rust-lang/cargo/pull/2279 
-[modification to the `cargo rustc` subcommand]: https://github.com/rust-lang/cargo/pull/2224 
+[improvement to build scripts]: https://github.com/rust-lang/cargo/pull/2279
+[modification to the `cargo rustc` subcommand]: https://github.com/rust-lang/cargo/pull/2224
 
 ### Contributors to 1.7