Externs generation: spit out src/-normalized path in generation messages

tools/json_schema_compiler/js_externs_generator_test.py

Index: tools/json_schema_compiler/js_externs_generator_test.py
diff --git a/tools/json_schema_compiler/js_externs_generator_test.py b/tools/json_schema_compiler/js_externs_generator_test.py
index 49462b2bbbae847cc4084518460509d5b924c44f..5036257a8ffb2709048d89f279f394f91e661458 100755
--- a/tools/json_schema_compiler/js_externs_generator_test.py
+++ b/tools/json_schema_compiler/js_externs_generator_test.py
@@ -89,12 +89,12 @@ namespace fakeApi {
 """
 
 # The output we expect from our fake idl file.
-expected_output = ("""// Copyright %s The Chromium Authors. All rights reserved.
+expected_output = """// Copyright %s The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file was generated by:
-//   %s.
+//   tools/json_schema_compiler/compiler.py.
 // NOTE: The format of types has changed. 'FooType' is now
 //   'chrome.fakeApi.FooType'.
 // Please run the closure compiler before committing changes.
@@ -219,7 +219,7 @@ chrome.fakeApi.optionalParam = function(callback) {};
  * @type {!ChromeEvent}
  * @see https://developer.chrome.com/extensions/fakeApi#event-onTrapDetected
  */
-chrome.fakeApi.onTrapDetected;""" % (datetime.now().year, sys.argv[0]))
+chrome.fakeApi.onTrapDetected;""" % datetime.now().year
 
 
 fake_json = """// Copyright 2014 The Chromium Authors. All rights reserved.
@@ -296,12 +296,12 @@ fake_json = """// Copyright 2014 The Chromium Authors. All rights reserved.
   }
 ]"""
 
-json_expected = ("""// Copyright %s The Chromium Authors. All rights reserved.
+json_expected = """// Copyright %s The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file was generated by:
-//   %s.
+//   tools/json_schema_compiler/compiler.py.
 // NOTE: The format of types has changed. 'FooType' is now
 //   'chrome.fakeJson.FooType'.
 // Please run the closure compiler before committing changes.
@@ -344,8 +344,8 @@ chrome.fakeJson.CrazyEnum = {
  * }}
  * @see https://developer.chrome.com/extensions/fakeJson#method-funcWithInlineObj
  */
-chrome.fakeJson.funcWithInlineObj = function(inlineObj, callback) {};""" %
-    (datetime.now().year, sys.argv[0]))
+chrome.fakeJson.funcWithInlineObj = function(inlineObj, callback) {};""" % (
+    datetime.now().year)
 
 
 class JsExternGeneratorTest(unittest.TestCase):