Fix spacing in for loop enumeration example

Jared Manning · web-flow · commit 5dfd79a8e624 · 2016-07-03T03:01:18.000-05:00
Add a space between the comma and j in (i, j) to make it look nice.
diff --git a/src/doc/book/loops.md b/src/doc/book/loops.md
@@ -105,7 +105,7 @@ When you need to keep track of how many times you already looped, you can use th
 #### On ranges:
 
 ```rust
-for (i,j) in (5..10).enumerate() {
+for (i, j) in (5..10).enumerate() {
     println!("i = {} and j = {}", i, j);
 }
 ```

Original file line number	Diff line number	Diff line change
`@@ -105,7 +105,7 @@ When you need to keep track of how many times you already looped, you can use th`
`105`	`105`	`#### On ranges:`
`106`	`106`
`107`	`107`	```rust
`108`		`-for (i,j) in (5..10).enumerate() {`
	`108`	`+for (i, j) in (5..10).enumerate() {`
`109`	`109`	`println!("i = {} and j = {}", i, j);`
`110`	`110`	`}`
`111`	`111`	```