Fix violations of G-7460

Author: PhilippSalvisberg

docs/4-language-usage/7-stored-objects/4-functions/g-7420.md

@@ -11,8 +11,12 @@ The reader expects the `return` statement to be the last statement of a function
 
 ``` sql
 create or replace package body my_package is
-   function my_function(in_from in pls_integer
-                       ,in_to   in pls_integer) return pls_integer is
+   function my_function(
+      in_from in pls_integer
+     ,in_to   in pls_integer
+   ) return pls_integer
+      deterministic
+   is
       l_ret pls_integer;
    begin
       l_ret := in_from;
@@ -33,8 +37,12 @@ end my_package;
 
 ``` sql
 create or replace package body my_package is
-   function my_function(in_from in pls_integer
-                       ,in_to   in pls_integer) return pls_integer is
+   function my_function(
+      in_from in pls_integer
+     ,in_to   in pls_integer
+   ) return pls_integer
+      deterministic
+   is
       l_ret pls_integer;
    begin
       l_ret := in_from;