Rollup merge of rust-lang#69584 - zantysor:fix-saturating-duration-since-comment, r=varkor

Dylan-DPC · web-flow · commit cf48ca617006 · 2020-02-29T18:54:05.000+01:00
Correct comment to match behavior

Corrects the header comment on `saturating_duration_since` to match the behavior of returning 0 if the other timestamp is _later_ than the invocant, not earlier,

This is purely a documentation change, so hopefully it doesn't require an issue; if it does, I'll open one and resubmit.
diff --git a/src/libstd/time.rs b/src/libstd/time.rs
@@ -284,7 +284,7 @@ impl Instant {
     }
 
     /// Returns the amount of time elapsed from another instant to this one,
-    /// or zero duration if that instant is earlier than this one.
+    /// or zero duration if that instant is later than this one.
     ///
     /// # Examples
     ///

Original file line number	Diff line number	Diff line change
`@@ -284,7 +284,7 @@ impl Instant {`
`284`	`284`	`}`
`285`	`285`
`286`	`286`	`/// Returns the amount of time elapsed from another instant to this one,`
`287`		`- /// or zero duration if that instant is earlier than this one.`
	`287`	`+ /// or zero duration if that instant is later than this one.`
`288`	`288`	`///`
`289`	`289`	`/// # Examples`
`290`	`290`	`///`