Fix filename generation due to camelize rework (#2744)

samples/client/petstore/cpp-restsdk/api/UserApi.h

@@ -4,7 +4,7 @@
  *
  * OpenAPI spec version: 1.0.0
  *
- * NOTE: This class is auto generated by OpenAPI-Generator 3.3.4.
+ * NOTE: This class is auto generated by OpenAPI-Generator 4.0.0-SNAPSHOT.
  * https://openapi-generator.tech
  * Do not edit the class manually.
  */
@@ -51,9 +51,9 @@ public:
     /// <remarks>
     /// This can only be done by the logged in user.
     /// </remarks>
-    /// <param name="user">Created user object</param>
+    /// <param name="body">Created user object</param>
     pplx::task<void> createUser(
-        std::shared_ptr<User> user
+        std::shared_ptr<User> body
     );
     /// <summary>
     /// Creates list of users with given input array
@@ -61,9 +61,9 @@ public:
     /// <remarks>
     /// 
     /// </remarks>
-    /// <param name="user">List of user object</param>
+    /// <param name="body">List of user object</param>
     pplx::task<void> createUsersWithArrayInput(
-        std::vector<std::shared_ptr<User>> user
+        std::vector<std::shared_ptr<User>> body
     );
     /// <summary>
     /// Creates list of users with given input array
@@ -71,9 +71,9 @@ public:
     /// <remarks>
     /// 
     /// </remarks>
-    /// <param name="user">List of user object</param>
+    /// <param name="body">List of user object</param>
     pplx::task<void> createUsersWithListInput(
-        std::vector<std::shared_ptr<User>> user
+        std::vector<std::shared_ptr<User>> body
     );
     /// <summary>
     /// Delete user
@@ -122,10 +122,10 @@ public:
     /// This can only be done by the logged in user.
     /// </remarks>
     /// <param name="username">name that need to be deleted</param>
-    /// <param name="user">Updated user object</param>
+    /// <param name="body">Updated user object</param>
     pplx::task<void> updateUser(
         utility::string_t username,
-        std::shared_ptr<User> user
+        std::shared_ptr<User> body
     );
 
 protected: