CMakeLists.txt: Fix the version for the manual, too

diff --git a/manual/CMakeLists.txt b/manual/CMakeLists.txt
index 3b881a56d6f3e61216742750a3bdcc48feb294fe..d6c54d61789af1cfdd56fc21e6692bf1ac1b9cf8 100644 (file)
--- a/manual/CMakeLists.txt
+++ b/manual/CMakeLists.txt
@@ -17,7 +17,7 @@
 ## along with this program.  If not, see <http://www.gnu.org/licenses/>.
 ##
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 2.8.12...3.31.5)
 
 project(PV_MANUAL)