From 547c945a6226045c65f4f8a840d96a456db97651 Mon Sep 17 00:00:00 2001
From: beorn7 <bjoern@rabenste.in>
Date: Mon, 6 May 2019 00:39:02 +0200
Subject: [PATCH] Replace fmt.Sprintf by simple concatenation

In this simple case, it's the fastest and easiest.

Signed-off-by: beorn7 <bjoern@rabenste.in>
---
 prometheus/go_collector.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/prometheus/go_collector.go b/prometheus/go_collector.go
index ba3b933..fcb5ccb 100644
--- a/prometheus/go_collector.go
+++ b/prometheus/go_collector.go
@@ -14,7 +14,6 @@
 package prometheus
 
 import (
-	"fmt"
 	"runtime"
 	"runtime/debug"
 	"time"
@@ -253,7 +252,7 @@ func NewGoCollector() Collector {
 }
 
 func memstatNamespace(s string) string {
-	return fmt.Sprintf("go_memstats_%s", s)
+	return "go_memstats_" + s
 }
 
 // Describe returns all descriptions of the collector.