Apply suggestions from code review

Co-authored-by: Bénédikt Tran <[email protected]>

Author: skirpichev

Modules/mathmodule.c

@@ -3098,6 +3098,7 @@ math_isfinite_impl(PyObject *module, double x)
     return PyBool_FromLong((long)isfinite(x));
 }
 
+
 /*[clinic input]
 math.isnormal
 
@@ -3114,6 +3115,7 @@ math_isnormal_impl(PyObject *module, double x)
     return PyBool_FromLong((long)isnormal(x));
 }
 
+
 /*[clinic input]
 math.issubnormal
 
@@ -3134,6 +3136,7 @@ math_issubnormal_impl(PyObject *module, double x)
 #endif
 }
 
+
 /*[clinic input]
 math.isnan