change DEBUG_flag to .false.

3 jobs for master in 3 minutes and 46 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Build
passed #69662
ci-ubuntu
build_ubuntu

00:01:28

passed #69661
vind-pone-ci02
build_x64

00:03:46

passed #69660
vind-pone-ci02
build_x86

00:03:45