Show more details how exactly cctz is used

CMakeLists.txt

@@ -273,7 +273,10 @@ endif()
 # 2023) packaged, so in my tests it always falls back to submodule
 find_package(cctz QUIET)
 set(cctz_cc "")
-if (NOT cctz_FOUND)
+if (cctz_FOUND)
+	message(STATUS "Found cctz at ${cctz_DIR}")
+else()
+	message(STATUS "Will build cctz")
 	set(cctz_cc
 		${PROJECT_SOURCE_DIR}/third_party/cctz/src/civil_time_detail.cc
 		${PROJECT_SOURCE_DIR}/third_party/cctz/src/time_zone_fixed.cc

NOTICE

@@ -17,6 +17,7 @@ ZNC includes code from Selectize (http://brianreavis.github.io/selectize.js/), l
 ZNC includes modified code from CMakeFindFrameworks.cmake by Kitware, Inc., licensed under BSD License.
 ZNC includes modified code from TestLargeFiles.cmake, licensed under Boost Software License, Version 1.0.
 ZNC includes code from BackportCpp (https://github.com/bitwizeshift/string_view-standalone), licensed under the MIT license.
+ZNC includes code from cctz (https://github.com/google/cctz), licensed under the Apache License 2.0.
 
 ZNC is developed by these people: