Format python files using yapf

Change-Id: I8b7b97efb6bfdcceef9efc533cdaa0675ab7db40
diff --git a/tools/golem_build.py b/tools/golem_build.py
index 4f668d6..ae09558 100755
--- a/tools/golem_build.py
+++ b/tools/golem_build.py
@@ -13,15 +13,18 @@
 
 GRADLE_ARGS = ['--no-daemon', '-Pno_internal']
 
+
 def lower(items):
-  return [ item.lower() for item in items ]
+    return [item.lower() for item in items]
+
 
 def Main():
-  targets = set()
-  targets.update(lower(run_benchmark.GOLEM_BUILD_TARGETS))
-  targets.update(lower(run_on_app_dump.GOLEM_BUILD_TARGETS))
-  cmd = GRADLE_ARGS + [target for target in targets]
-  gradle.RunGradle(cmd)
+    targets = set()
+    targets.update(lower(run_benchmark.GOLEM_BUILD_TARGETS))
+    targets.update(lower(run_on_app_dump.GOLEM_BUILD_TARGETS))
+    cmd = GRADLE_ARGS + [target for target in targets]
+    gradle.RunGradle(cmd)
+
 
 if __name__ == '__main__':
-  sys.exit(Main())
+    sys.exit(Main())