gbproxy/test: Fix IMSI length check (Coverity)

This fixes the IMSI length assertion, which currently uses a
greater-or-equal than zero comparison which always yields true. It is
replaced by a greater than zero check.

Fixes: Coverity CID 1239442

Sponsored-by: On-Waves ehf
1 file changed
tree: 52fa80d1e6ac0d00ea074f15a9e8756ac3360675
  1. debian/
  2. hlrsync/
  3. linux-kernel/
  4. openbsc/
  5. wireshark/
  6. README