Implemented reviewer feedback

- Corrected order of additional arguments
- Fixed spacing for PEP8

Author: S17A05

src/sage/algebras/quatalg/quaternion_algebra.py

@@ -701,13 +701,13 @@ def maximal_order(self, take_shortcuts=True, order_basis=None):
 
         INPUT:
 
-        - ``order_basis`` -- (optional, default: ``None``) a basis of an
-          order of this quaternion algebra
-
         - ``take_shortcuts`` -- (default: ``True``) if the discriminant is
           prime and the invariants of the algebra are of a nice form, use
           Proposition 5.2 of [Piz1980]_.
 
+        - ``order_basis`` -- (optional, default: ``None``) a basis of an
+          order of this quaternion algebra
+
         OUTPUT:
 
         A maximal order in this quaternion algebra.
@@ -814,7 +814,7 @@ def maximal_order(self, take_shortcuts=True, order_basis=None):
         #  of such a form though)
         a, b = self.invariants()
         if (not order_basis and take_shortcuts and d_A.is_prime()
-        and a in ZZ and b in ZZ):
+            and a in ZZ and b in ZZ):
             a = ZZ(a)
             b = ZZ(b)
             i, j, k = self.gens()