teuthology/run: use default value for better readability

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/teuthology/run.py b/teuthology/run.py
index be97b63e0949e8dc8420ea08a55232238e6f4350..5ecd2f6e143d20fc7d54ea902d234bb0f1930bbf 100644 (file)
--- a/teuthology/run.py
+++ b/teuthology/run.py
@@ -167,9 +167,9 @@ def validate_tasks(config):
 
 def get_initial_tasks(lock, config, machine_type):
     init_tasks = []
-    overrides = config.get('overrides')
-    having_repos = ('install' in config and 'repos' in config.get('install')) \
-        or (overrides and 'install' in overrides and 'repos' in overrides.get('install'))
+    overrides = config.get('overrides', {})
+    having_repos = ('repo' in config.get('install', {}) or
+                    'repo' in overrides.get('install', {}))
     if not ('redhat' in config or having_repos):
         init_tasks += [
             {'internal.check_packages': None},