[docs] Change argument name to match docs.

Alexis Beingessner · Alexis Beingessner · commit ff82c1e59f9c · 2016-11-30T18:35:54.000-05:00
diff --git a/stdlib/public/core/UnsafePointer.swift.gyb b/stdlib/public/core/UnsafePointer.swift.gyb
@@ -446,10 +446,10 @@ public struct ${Self}<Pointee>
   }
 
   /// Returns `end - self`.
-  public func distance(to x: ${Self}) -> Int {
-    return x - self
   ///
   /// - Precondition: The result is within the bounds of the same allocation.
+  public func distance(to end: ${Self}) -> Int {
+    return end - self
   }
 
   /// Returns `self + n`.

Original file line number	Diff line number	Diff line change
`@@ -446,10 +446,10 @@ public struct ${Self}<Pointee>`
`446`	`446`	`}`
`447`	`447`
`448`	`448`	/// Returns `end - self`.
`449`		`- public func distance(to x: ${Self}) -> Int {`
`450`		`- return x - self`
`451`	`449`	`///`
`452`	`450`	`/// - Precondition: The result is within the bounds of the same allocation.`
	`451`	`+ public func distance(to end: ${Self}) -> Int {`
	`452`	`+ return end - self`
`453`	`453`	`}`
`454`	`454`
`455`	`455`	/// Returns `self + n`.