code review 4001048: log: rename Exit* to Fatal*

src/pkg/exec/lp_test.go

 // Copyright 2011 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 exec
 
 import (
         "testing"
 )
 
 var nonExistentPaths = []string{
         "some-non-existent-path",
         "non-existent-path/slashed",
 }
 
 func TestLookPathNotFound(t *testing.T) {
         for _, name := range nonExistentPaths {
                 path, err := LookPath(name)
                 if err == nil {
                         t.Fatalf("LookPath found %q in $PATH", name)
                 }
                 if path != "" {
                         t.Fatalf("LookPath path == %q when err != nil", path)
                 }
                 perr, ok := err.(*PathError)
                 if !ok {
                         t.Fatal("LookPath error is not a PathError")
                 }
                 if perr.Name != name {
-                        t.Fatal("want PathError name %q, got %q", name, perr.Name)
+                        t.Fatalf("want PathError name %q, got %q", name, perr.Name)
                 }
         }
 }