Update CMakeLists.txt for Apache License 2.0

CMakeLists.txt

@@ -85,7 +85,7 @@ if(UNIX)
   set(CPACK_RPM_COMPONENT_INSTALL ON)
   set(CPACK_RPM_FILE_NAME "RPM-DEFAULT")
   set(CPACK_RPM_PACKAGE_GROUP "Applications/Internet")
-  set(CPACK_RPM_PACKAGE_LICENSE "GPLv2")
+  set(CPACK_RPM_PACKAGE_LICENSE "ASL 2.0")
 
   include(CPack)
 endif()