build: Rephrase check-version message when build version is disabled

build-support/custom-modules/ns3-versioning.cmake

@@ -73,8 +73,8 @@ endfunction()
 function(configure_embedded_version)
   if(NOT ${NS3_ENABLE_BUILD_VERSION})
     add_custom_target(
-      check-version COMMAND echo Reconfigure ns-3 with
-                            NS3_ENABLE_BUILD_VERSION=ON
+      check-version COMMAND echo Build version feature disabled. Reconfigure
+                            ns-3 with NS3_ENABLE_BUILD_VERSION=ON
     )
     return()
   endif()

ns3

@@ -931,6 +931,10 @@ def build_step(args,
                     target = "sphinx"
                     args.build.append("doxygen")
 
+                if target == "check-version":
+                    global run_verbose
+                    run_verbose = False  # Do not print the equivalent cmake command
+
             cmake_build(current_cmake_cache_folder,
                         jobs=args.jobs,
                         target=target,