Fix Pylint warnings.

map_machine/geometry/boundary_box.py

@@ -17,9 +17,7 @@ LONGITUDE_MAX_DIFFERENCE: float = 0.5
 
 @dataclass
 class BoundaryBox:
-    """
-    Rectangle that limit space on the map.
-    """
+    """Rectangle that limit space on the map."""
 
     left: float  # Minimum longitude.
     bottom: float  # Minimum latitude.

map_machine/geometry/flinger.py

@@ -40,9 +40,7 @@ def osm_zoom_level_to_pixels_per_meter(
 
 
 class Flinger:
-    """
-    Convert geo coordinates into SVG position points.
-    """
+    """Convert geo coordinates into SVG position points."""
 
     def __init__(
         self,

map_machine/geometry/vector.py

@@ -41,9 +41,7 @@ def norm(vector: np.ndarray) -> np.ndarray:
 
 
 class Polyline:
-    """
-    List of connected points.
-    """
+    """List of connected points."""
 
     def __init__(self, points: list[np.ndarray]) -> None:
         self.points: list[np.ndarray] = points