[pre-commit.ci] auto fixes from pre-commit.com hooks

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Author: pre-commit-ci[bot]

src/parcels/_core/mesh.py

@@ -5,7 +5,7 @@ class SphericalMesh:
     """Spherical mesh object with configurable planetary radius.
 
     Pass to FieldSet object as ``mesh=SphericalMesh(radius=...)``.
-    radius is in meters; None reverts to default for Earth, where 
+    radius is in meters; None reverts to default for Earth, where
     arcdegree to meter conversion is defined as 1852 * 60
     (1852 meters per arcminute * 60 arcminutes per arcdegree).
     """