Do not exclude the last revision in the range returned by gitiles.

scripts/slave/recipes/bisection/android_bisect.expected/local_basic_recipe_failed_device.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport sys, os\npath = sys.argv[1]\nmode = int(sys.argv[2])\nif not os.path.isdir(path):\n  if os.path.exists(path):\n    print \"%s exists but is not a dir\" % path\n    sys.exit(1)\n  os.makedirs(path, mode)\n",
       "[BUILDER_CACHE]/android_one_perf_bisect",
       "511"
     ],
     "name": "makedirs checkout path",
@@ skipping 1774 matching lines @@
       "git",
       "footers",
       "--position",
       "fc6dfc7ff5b1073408499478969261b826441144"
     ],
     "cwd": "[BUILDER_CACHE]/android_one_perf_bisect/src",
     "name": "resolving hash fc6dfc7ff5b1073408499478969261b826441144",
     "stdout": "/path/to/tmp/"
   },
   {
-    "cmd": [
-      "git",
-      "footers",
-      "--position",
-      "e28dc0d49c331def2a3bbf3ddd0096eb51551155"
-    ],
-    "cwd": "[BUILDER_CACHE]/android_one_perf_bisect/src",
-    "name": "resolving hash e28dc0d49c331def2a3bbf3ddd0096eb51551155",
-    "stdout": "/path/to/tmp/"
-  },
-  {
     "cmd": [],
     "cwd": "[BUILDER_CACHE]/android_one_perf_bisect",
     "name": "Debug Info",
     "~followup_annotations": [
       "step returned non-zero exit code: 1",
       "@@@STEP_FAILURE@@@"
     ]
   },
   {
     "cmd": [
@@ skipping 351 matching lines @@
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "name": "$result",
     "reason": "Step('Debug Info') failed with return_code 1",
     "recipe_result": null,
     "status_code": 1
   }
 ]