Fix indentation in playbooks/base/pre-logs.yaml

Change-Id: I32055238a0c346f7b22e22366c7787692a2e3467
diff --git a/playbooks/base/pre-logs.yaml b/playbooks/base/pre-logs.yaml
index 27f0156..399fecf 100644
--- a/playbooks/base/pre-logs.yaml
+++ b/playbooks/base/pre-logs.yaml
@@ -1,6 +1,6 @@
 - hosts: localhost
   tasks:
     - name: Install boto3
-        pip:
-          name:
-            - boto3
+      pip:
+        name:
+          - boto3