Do not suggest to replace .DEPS.git with DEPS.

Both are valid since depot_tools r291592.

[email protected]
NOTRY=true
BUG=406934

Review URL: https://codereview.chromium.org/488313003

Cr-Commit-Position: refs/heads/master@{#291630}
diff --git a/tools/check_git_config.py b/tools/check_git_config.py
index 51b1301..2b5fe58 100755
--- a/tools/check_git_config.py
+++ b/tools/check_git_config.py
@@ -385,7 +385,9 @@
     'managed': conf['gclient_managed'] or False,
     'url': conf['gclient_url'],
   }
-  good = GOOD_GCLIENT_SOLUTION
+  # After depot_tools r291592 both DEPS and .DEPS.git are valid.
+  good = GOOD_GCLIENT_SOLUTION.copy()
+  good['deps_file'] = current['deps_file']
   if current == good:
     return
   # Show big warning if url or deps_file is wrong.