text/template: fix lint typo in VariableNode doc

Change-Id: I68b8c782478aa3e7adbd36a2de1c20b04e8c395b
GitHub-Last-Rev: 50f27197837e57e1d68b8905eaa66ea142bd45fc
GitHub-Pull-Request: golang/go#39622
Reviewed-on: https://go-review.googlesource.com/c/go/+/239383
Reviewed-by: Rob Pike <r@golang.org>
diff --git a/src/text/template/parse/node.go b/src/text/template/parse/node.go
index 1c116ea..dddc775 100644
--- a/src/text/template/parse/node.go
+++ b/src/text/template/parse/node.go
@@ -349,7 +349,7 @@
 	return NewIdentifier(i.Ident).SetTree(i.tr).SetPos(i.Pos)
 }
 
-// AssignNode holds a list of variable names, possibly with chained field
+// VariableNode holds a list of variable names, possibly with chained field
 // accesses. The dollar sign is part of the (first) name.
 type VariableNode struct {
 	NodeType