runtime: fix incorrect comment

Fix incorrect comment for the runtime package.

Change-Id: Iab889eff0e9c622afbed959d32b8b5f0ed0bfebf
GitHub-Last-Rev: e9587868db36d9dd466f52f7ffc5de09947a6b2f
GitHub-Pull-Request: golang/go#57731
Reviewed-on: https://go-review.googlesource.com/c/go/+/461498
Reviewed-by: Keith Randall <khr@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Keith Randall <khr@golang.org>
Auto-Submit: Keith Randall <khr@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Reviewed-by: Keith Randall <khr@google.com>

diff --git a/src/runtime/mpagecache.go b/src/runtime/mpagecache.go
index 5bad4f789a11982659da1d894509f312859f8faa..5bc9c84408db525e107d274864362635f4e2f162 100644 (file)
--- a/src/runtime/mpagecache.go
+++ b/src/runtime/mpagecache.go
@@ -21,8 +21,7 @@ type pageCache struct {
        scav  uint64  // 64-bit bitmap representing scavenged pages (1 means scavenged)
 }
 
-// empty returns true if the pageCache has any free pages, and false
-// otherwise.
+// empty reports whether the page cache has no free pages.
 func (c *pageCache) empty() bool {
        return c.cache == 0
 }