nitb: The subscr->imsi is an array will never be NULL

Array compared against 0 (NO_EFFECT)
array_null: Comparing an array to null is not useful: "subscr->imsi"

Fixes: Coverity CID 1040716
2 files changed
tree: fa90324a3f0d9b05aaaabeb2f601670bdeb3c68b
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README