Print value of werror in mesonconf

mesonbuild/mconf.py

@@ -123,6 +123,7 @@ class Conf:
         booleans = '[true, false]'
         carr.append(['buildtype', 'Build type', self.coredata.get_builtin_option('buildtype'), build_types])
         carr.append(['warning_level', 'Warning level', self.coredata.get_builtin_option('warning_level'), warning_levels])
+        carr.append(['werror', 'Treat warnings as errors', self.coredata.get_builtin_option('werror'), booleans])
         carr.append(['strip', 'Strip on install', self.coredata.get_builtin_option('strip'), booleans])
         carr.append(['coverage', 'Coverage report', self.coredata.get_builtin_option('coverage'), booleans])
         carr.append(['use_pch', 'Precompiled headers', self.coredata.get_builtin_option('use_pch'), booleans])