metrics: fix some typos in comments and names #31023 (#1557)

metrics/exp/exp.go

@@ -1,5 +1,6 @@
 // Hook go-metrics into expvar
 // on any /debug/metrics request, load all vars from the registry into expvar, and execute regular expvar handler
+
 package exp
 
 import (

metrics/gauge_info.go

@@ -39,7 +39,7 @@ func NewRegisteredGaugeInfo(name string, r Registry) *GaugeInfo {
 	return c
 }
 
-// gaugeInfoSnapshot is a read-only copy of another GaugeInfo.
+// GaugeInfoSnapshot is a read-only copy of another GaugeInfo.
 type GaugeInfoSnapshot GaugeInfoValue
 
 // Value returns the value at the time the snapshot was taken.

metrics/log.go

@@ -12,7 +12,7 @@ func Log(r Registry, freq time.Duration, l Logger) {
 	LogScaled(r, freq, time.Nanosecond, l)
 }
 
-// Output each metric in the given registry periodically using the given
+// LogScaled outputs each metric in the given registry periodically using the given
 // logger. Print timings in `scale` units (eg time.Millisecond) rather than nanos.
 func LogScaled(r Registry, freq time.Duration, scale time.Duration, l Logger) {
 	du := float64(scale)

metrics/metrics.go

@@ -3,6 +3,7 @@
 // <https://github.com/rcrowley/go-metrics>
 //
 // Coda Hale's original work: <https://github.com/codahale/metrics>
+
 package metrics
 
 import (

metrics/resetting_timer.go

@@ -53,14 +53,14 @@ func (t *ResettingTimer) Snapshot() *ResettingTimerSnapshot {
 	return snapshot
 }
 
-// Record the duration of the execution of the given function.
+// Time records the duration of the execution of the given function.
 func (t *ResettingTimer) Time(f func()) {
 	ts := time.Now()
 	f()
 	t.Update(time.Since(ts))
 }
 
-// Record the duration of an event.
+// Update records the duration of an event.
 func (t *ResettingTimer) Update(d time.Duration) {
 	if !metricsEnabled {
 		return
@@ -71,7 +71,7 @@ func (t *ResettingTimer) Update(d time.Duration) {
 	t.sum += int64(d)
 }
 
-// Record the duration of an event that started at a time and ends now.
+// UpdateSince records the duration of an event that started at a time and ends now.
 func (t *ResettingTimer) UpdateSince(ts time.Time) {
 	t.Update(time.Since(ts))
 }

metrics/syslog.go

@@ -9,7 +9,7 @@ import (
 	"time"
 )
 
-// Output each metric in the given registry to syslog periodically using
+// Syslog outputs each metric in the given registry to syslog periodically using
 // the given syslogger.
 func Syslog(r Registry, d time.Duration, w *syslog.Writer) {
 	for range time.Tick(d) {