Remove /opt from auto filelist for rpm package because it's a conflict with filesystem package.

CMakeLists.txt

@@ -868,6 +868,8 @@ ELSE(WIN32 AND NOT UNIX)
 #SET (CPACK_RPM_PACKAGE_REQUIRES )
 #set(CPACK_RPM_COMPONENT_INSTALL ON)
 
+set(CPACK_RPM_EXCLUDE_FROM_AUTO_FILELIST "/opt")
+
 set(CPACK_RPM_PACKAGE_REQUIRES "matio >= 1.5.7")
 #TODO: set(CPACK_DEBIAN_PACKAGE_DEPENDS "matio")
 if(BUILD_WRAPPER_PYTHON)