cmd/gc: fix error message for import as 'init'
Fixes #5853.
R=ken2
CC=golang-dev
https://golang.org/cl/11104044
diff --git a/test/fixedbugs/issue4517d.go b/test/fixedbugs/issue4517d.go
new file mode 100644
index 0000000..f601db6
--- /dev/null
+++ b/test/fixedbugs/issue4517d.go
@@ -0,0 +1,9 @@
+// errorcheck
+
+// Copyright 2012 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package p
+
+import init "fmt" // ERROR "cannot import package as init - init must be a func"
