Pep8: Fix.

src/Model/Friction/Friction.py

@@ -80,7 +80,8 @@ class Friction(SQLSubModel):
         stricklers = data["stricklers"].stricklers
 
         table = execute(
-            "SELECT id, ind, begin_kp, end_kp, begin_strickler, end_strickler " +
+            "SELECT id, ind, begin_kp, end_kp, " +
+            "begin_strickler, end_strickler " +
             f"FROM friction WHERE reach = {reach.id}"
         )