* modules/shepherd.scm (verify-dir): Replace argument INSECURE by a
keyword argument #:SECURE?.  All callers changed.  Improve the logic of
the implementation.
---
 modules/shepherd.scm         |  8 ++++----
 modules/shepherd/support.scm | 25 ++++++++++++-------------
 2 files changed, 16 insertions(+), 17 deletions(-)