Post-fix: Bug#26742748 - 8.0 DOCKER IMAGE RPM GENERATES 5.7 DOC URL IN /ETC/MY.CNF

	- Fix the cmake for docker rpm builds

(cherry picked from commit 70f9efc1b7a291fbf693dbc4827acba4961ddc62)

Author: bkandasa

packaging/rpm-docker/CMakeLists.txt

@@ -1,4 +1,4 @@
-# Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2012, 2017, Oracle and/or its affiliates. All rights reserved.
 # 
 # This program is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -31,7 +31,7 @@ IF(UNIX)
   CONFIGURE_FILE(mysql.spec.in ${CMAKE_CURRENT_BINARY_DIR}/${SPECFILENAME} @ONLY)
 
   FOREACH(fedfile my.cnf)
-    CONFIGURE_FILE(${fedfile}.in ${CMAKE_CURRENT_BINARY_DIR}/${fedfile} COPYONLY)
+    CONFIGURE_FILE(${fedfile}.in ${CMAKE_CURRENT_BINARY_DIR}/${fedfile} @ONLY)
   ENDFOREACH()
 ENDIF()