Fix up Darwin swap metrics

* Add a changelog entry.
* Remove redundant swap free metric.

Signed-off-by: Ben Kochie <superq@gmail.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/collector/meminfo_darwin.go b/collector/meminfo_darwin.go
index 87f3e5a..da443cd 100644
--- a/collector/meminfo_darwin.go
+++ b/collector/meminfo_darwin.go
@@ -69,7 +69,6 @@ func (c *meminfoCollector) getMemInfo() (map[string]float64, error) {
                 "swapped_out_bytes_total": ps * float64(vmstat.pageouts),
                 "total_bytes":             float64(total),
                 "swap_used_bytes":         float64(swap.xsu_used),
-                "swap_free_bytes":         float64(swap.xsu_avail),
                 "swap_total_bytes":        float64(swap.xsu_total),
         }, nil
 }