Simplify fn round_up

CHANGELOG.md

@@ -7,6 +7,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 ## [Unreleased]
 
 
+- [#xxx] Simplify `fn round_up`
 - [#337] Clean snapshot tests
 - [#335] Add unit tests for `fn round_up`
 - [#334] Simplify snapshot tests
@@ -23,6 +24,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/) and this p
 - [#314] Clarify documentation in README
 - [#293] Update snapshot tests to new TRACE output
 
+[#xxx]: https://github.com/knurling-rs/probe-run/pull/xxx
 [#337]: https://github.com/knurling-rs/probe-run/pull/337
 [#335]: https://github.com/knurling-rs/probe-run/pull/335
 [#334]: https://github.com/knurling-rs/probe-run/pull/334

src/canary.rs

@@ -172,11 +172,9 @@ impl Canary {
 
 /// Rounds up to the next multiple of `k` that is greater or equal to `n`.
 fn round_up(n: u32, k: u32) -> u32 {
-    let rem = n % k;
-    if rem == 0 {
-        n
-    } else {
-        n + k - rem
+    match n % k {
+        0 => n,
+        rem => n + k - rem,
     }
 }