Fix change log generation in push-to-trunk script.

tools/push-to-trunk/test_scripts.py

 #!/usr/bin/env python
 # Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
@@ skipping 85 matching lines @@
            "Title text 3\n\nBUG=1234\nLOG = Yes\n",
            "author3@chromium.org"],
           ["Title text 3",
            "Title text 4\n\nBUG=1234\nLOG=\n",
            "author4@chromium.org"],
         ]
     self.assertEquals("        Title text 1.\n\n"
                       "        Title text 3 (Chromium issue 1234).\n\n",
                       MakeChangeLogBody(commits, True))
 
+  def testRegressWrongLogEntryOnTrue(self):
+    body = """
+Check elimination: Learn from if(CompareMap(x)) on true branch.
+
+BUG=
+R=verwaest@chromium.org
+
+Committed: https://code.google.com/p/v8/source/detail?r=18210
+"""
+    self.assertEquals("", MakeChangeLogBody([["title", body, "author"]], True))
+
   def testMakeChangeLogBugReferenceEmpty(self):
     self.assertEquals("", MakeChangeLogBugReference(""))
     self.assertEquals("", MakeChangeLogBugReference("LOG="))
     self.assertEquals("", MakeChangeLogBugReference(" BUG ="))
     self.assertEquals("", MakeChangeLogBugReference("BUG=none\t"))
 
   def testMakeChangeLogBugReferenceSimple(self):
     self.assertEquals("(issue 987654)",
                       MakeChangeLogBugReference("BUG = v8:987654"))
     self.assertEquals("(Chromium issue 987654)",
@@ skipping 605 matching lines @@
 
 Review URL: https://codereview.chromium.org/83173002
 
 ------------------------------------------------------------------------""")
     self.assertEquals(
 """Prepare push to trunk.  Now working on version 3.23.11.
 
 R=danno@chromium.org
 
 Committed: https://code.google.com/p/v8/source/detail?r=17997""", body)