fixed spacing

tests/test_dpi_font.py

@@ -1,6 +1,7 @@
 import pytest
 from piker.ui._style import DpiAwareFont
 
+
 class MockScreen:
     def __init__(self, pdpi, ldpi, name="MockScreen"):
         self._pdpi = pdpi
@@ -8,13 +9,14 @@ class MockScreen:
         self._name = name
 
     def physicalDotsPerInch(self):
-          return self._pdpi
+        return self._pdpi
 
     def logicalDotsPerInch(self):
-          return self._ldpi
+        return self._ldpi
 
     def name(self):
-          return self._name
+        return self._name
+
 
 @pytest.mark.parametrize(
     "pdpi, ldpi, expected_px",