From fcf1cb2cf51bae37a8d5d0425a39e21ce5073bff Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Sun, 5 Jul 2020 23:39:45 -0400
Subject: [PATCH] go/build: remove use of package log

package log does not belong here,
even for an impossible condition.

Change-Id: I6180a4f7766a8e5759db4f33d03703d0b678d0b4
Reviewed-on: https://go-review.googlesource.com/c/go/+/241077
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
---
 src/go/build/build.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/src/go/build/build.go b/src/go/build/build.go
index 1a122c615f..4a5da308a0 100644
--- a/src/go/build/build.go
+++ b/src/go/build/build.go
@@ -16,7 +16,6 @@ import (
 	"internal/goversion"
 	"io"
 	"io/ioutil"
-	"log"
 	"os"
 	"os/exec"
 	pathpkg "path"
@@ -924,7 +923,7 @@ Found:
 				quoted := spec.Path.Value
 				path, err := strconv.Unquote(quoted)
 				if err != nil {
-					log.Panicf("%s: parser returned invalid quoted string: <%s>", filename, quoted)
+					panic(fmt.Sprintf("%s: parser returned invalid quoted string: <%s>", filename, quoted))
 				}
 				fileImports = append(fileImports, importPos{path, spec.Pos()})
 				if path == "C" {