[Telemetry] Resolve errors due to new pylint checker.

tools/telemetry/telemetry/core/gpu_device_unittest.py

Index: tools/telemetry/telemetry/core/gpu_device_unittest.py
diff --git a/tools/telemetry/telemetry/core/gpu_device_unittest.py b/tools/telemetry/telemetry/core/gpu_device_unittest.py
index 3ccf516c072965e754b48ba1a5fe39d39f154ae6..1e6415a88d46280a43e23ccce886c70dc87cdd90 100644
--- a/tools/telemetry/telemetry/core/gpu_device_unittest.py
+++ b/tools/telemetry/telemetry/core/gpu_device_unittest.py
@@ -7,6 +7,7 @@ from telemetry.core import gpu_device
 
 
 class TestGPUDevice(unittest.TestCase):
+
   def testConstruction(self):
     device = gpu_device.GPUDevice(1000, 2000, 'test_vendor', 'test_device')
     self.assertEquals(device.vendor_id, 1000)
@@ -15,10 +16,10 @@ class TestGPUDevice(unittest.TestCase):
     self.assertEquals(device.device_string, 'test_device')
 
   def testFromDict(self):
-    dictionary = { 'vendor_id': 3000,
-                   'device_id': 4000,
-                   'vendor_string': 'test_vendor_2',
-                   'device_string': 'test_device_2' }
+    dictionary = {'vendor_id': 3000,
+                  'device_id': 4000,
+                  'vendor_string': 'test_vendor_2',
+                  'device_string': 'test_device_2'}
     device = gpu_device.GPUDevice.FromDict(dictionary)
     self.assertEquals(device.vendor_id, 3000)
     self.assertEquals(device.device_id, 4000)
@@ -27,10 +28,10 @@ class TestGPUDevice(unittest.TestCase):
 
   def testMissingAttrsFromDict(self):
     data = {
-      'vendor_id': 1,
-      'device_id': 2,
-      'vendor_string': 'a',
-      'device_string': 'b'
+        'vendor_id': 1,
+        'device_id': 2,
+        'vendor_string': 'a',
+        'device_string': 'b'
     }
 
     for k in data:
@@ -41,5 +42,5 @@ class TestGPUDevice(unittest.TestCase):
         self.fail('Should raise exception if attribute "%s" is missing' % k)
       except AssertionError:
         raise
-      except:
+      except KeyError:
         pass