From a0580df208a1d498968138d63508ae4e30df2ec5 Mon Sep 17 00:00:00 2001
From: Pantelis Sampaziotis <psampaz@gmail.com>
Date: Mon, 30 Sep 2019 18:41:13 +0300
Subject: [PATCH] text/template/parse: preallocate slice in Pipenode.CopyPipe()

---
 src/text/template/parse/node.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/text/template/parse/node.go b/src/text/template/parse/node.go
index 1174a4b970..74552c293f 100644
--- a/src/text/template/parse/node.go
+++ b/src/text/template/parse/node.go
@@ -187,7 +187,7 @@ func (p *PipeNode) CopyPipe() *PipeNode {
 	if p == nil {
 		return p
 	}
-	var vars []*VariableNode
+	vars := make([]*VariableNode, 0, len(p.Decl))
 	for _, d := range p.Decl {
 		vars = append(vars, d.Copy().(*VariableNode))
 	}