Add diagnostics_writer.cc to the list of files allowed to printf.

BUG=
TBR=maruel

Review URL: https://codereview.chromium.org/458503002

Cr-Commit-Position: refs/heads/master@{#288440}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288440 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index a9d0502..446d910 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -920,6 +920,8 @@
                  r"^chrome[\\\/]browser[\\\/]ui[\\\/]startup[\\\/]"
                      r"startup_browser_creator\.cc$",
                  r"^chrome[\\\/]installer[\\\/]setup[\\\/].*",
+                 r"chrome[\\\/]browser[\\\/]diagnostics[\\\/]" +
+                     r"diagnostics_writer.cc"
                  r"^chrome_elf[\\\/]dll_hash[\\\/]dll_hash_main\.cc$",
                  r"^chromecast[\\\/]",
                  r"^cloud_print[\\\/]",