reflect/protorange: fix typo of func name in comment

Change-Id: I80ffc34e29757e0cbdccdd530404fa215cfaf75f
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/317989
Reviewed-by: Alberto Donizetti <alb.donizetti@gmail.com>
Reviewed-by: Joe Tsai <thebrokentoaster@gmail.com>
Trust: Alberto Donizetti <alb.donizetti@gmail.com>
diff --git a/reflect/protorange/range.go b/reflect/protorange/range.go
index 01750f7..24794cd 100644
--- a/reflect/protorange/range.go
+++ b/reflect/protorange/range.go
@@ -298,7 +298,7 @@
 	p.Values = p.Values[:len(p.Values)-1]
 }
 
-// amendErrors amends the previous error with the current error if it is
+// amendError amends the previous error with the current error if it is
 // considered more serious. The precedence order for errors is:
 //	nil < Break < Terminate < previous non-nil < current non-nil
 func amendError(prev, curr error) error {