1.12.1: knem registration cost reported by ucx_info -d is huge (formatting issue, presumably)

[tonycurtis]

Describe the bug

ucx_info -d output for knem shows a bizarrely huge registration time cost

not seen in git HEAD version

Setup and versions

• OS version (e.g Linux distro) + CPU architecture (x86_64/aarch64/ppc64le/...)
  • cat /etc/issue or cat /etc/redhat-release + uname -a

CentOS Linux release 8.4.2105
Linux login1 4.18.0-305.25.1.el8_4.aarch64 #1 SMP Tue Nov 2 21:37:36 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux

also on other platforms with 1.12.1

Additional information (depending on the issue)

# Memory domain: knem
#     Component: knem
#             register: unlimited, cost: 18446744073709551616000000000 nsec
#           remote key: 16 bytes
#
#      Transport: knem
#         Device: memory
#           Type: intra-node
#  System device: <unknown>
#
#      capabilities:
#            bandwidth: 13862.00/ppn + 0.00 MB/sec
#              latency: 80 nsec
#             overhead: 2000 nsec
#            put_zcopy: unlimited, up to 16 iov
#  put_opt_zcopy_align: <= 1
#        put_align_mtu: <= 1
#            get_zcopy: unlimited, up to 16 iov
#  get_opt_zcopy_align: <= 1
#        get_align_mtu: <= 1
#           connection: to iface
#      device priority: 0
#     device num paths: 1
#              max eps: inf
#       device address: 8 bytes
#        iface address: 0 bytes
#       error handling: none