milo: put line breaks between step text strings

appengine/cmd/milo/buildbot/expectations/CrWinGoma.30608.build.json

 {
   "Summary": {
     "Label": "Builder CrWinGoma Build #30608",
     "Status": "Success",
     "Bot": {
       "Label": "build28-m1",
       "Img": "",
       "Subtitle": "",
       "URL": "https://build.chromium.org/p//buildslaves/build28-m1",
       "Alt": ""
@@ skipping 125 matching lines @@
         }
       ],
       "Progress": null,
       "Started": "2016-06-08T13:38:08-07:00",
       "Finished": "2016-06-08T13:38:08-07:00",
       "Duration": 0,
       "Type": "Recipe",
       "LevelsDeep": 0,
       "Text": [
         "setup_build",
-        "\u003cbr/\u003erunning recipe: \"chromium\""
+        "running recipe: \"chromium\""
       ]
     },
     {
       "Label": "taskkill",
       "Status": "Success",
       "Bot": null,
       "Source": null,
       "MainLink": {
         "Label": "stdio",
         "Img": "",
@@ skipping 738 matching lines @@
       "Title": "Update GN docs about target_cpu to encourage use of current_cpu",
       "ChangelistURL": "",
       "CommitURL": "",
       "File": [
         "",
         ""
       ]
     }
   ]
 }