fix strncpy() invocation in vty_interface_layer3.c and 3 tests

Use osmo_strlcpy() to fix unsafe invocation of strncpy(), which potentially
left the result unterminated.

Change-Id: I1a119b1760a3e3262538b4b012d476fdce505482
4 files changed
tree: 23f3f7906ad01337c44d862b929aed0257d55228
  1. contrib/
  2. debian/
  3. openbsc/
  4. .gitignore
  5. .gitreview
  6. .mailmap