Pep8 fix for generate inventory script

Resolves openbmc/openbmc-test-automation#1138

Change-Id: Ie002890ec36947d9e44e331a78bfac56ffcb09b3
Signed-off-by: Sweta Potthuri <spotthur@in.ibm.com>
diff --git a/data/inventory.py b/data/inventory.py
index 84a1fa5..a3def69 100644
--- a/data/inventory.py
+++ b/data/inventory.py
@@ -1,16 +1,16 @@
 inventory_dict = {
-    "core":[
+    "core": [
         "PrettyName",
         "Present",
         "Functional"
     ],
-    "fan":[
+    "fan": [
         "PrettyName",
         "Present",
         "MeetsMinimumShipLevel",
         "Functional"
     ],
-    "fru":[
+    "fru": [
         "PrettyName",
         "Present",
         "PartNumber",
@@ -23,7 +23,7 @@
         "Cached",
         "Functional"
     ],
-    "gpu":[
+    "gpu": [
         "PrettyName",
         "Present",
         "Functional"