Description of problem: For vms with longer names, gather_vms_details fails to collect qemu, dump xml logs. Problem seems to be in gather_vm_by_pod_name() of https://github.com/kubevirt/must-gather/blob/main/collection-scripts/gather_vms_details#L57

Version-Release number of selected component (if applicable):
Tested against 4.10.0

How reproducible:
100%

Steps to Reproduce:
1. Create vms with longer name, e.g. "must-gather-alternate-vm-0-1645914515-3829353", "must-gather-alternate-vm-1-1645914516-4957256" and "must-gather-alternate-vm-2-1645914517-5781033", in namespace: "must-gather-alternate-unprivileged"
2. Run must gather script "oc adm must-gather --image=registry.redhat.io/container-native-virtualization/cnv-must-gather-rhel8@sha256:ad5129b71f9a4fbc1dee6a801bd5da626d9bed34d12980a0d61a6d08fc0baa79 – gather_vms_details"
3. Validate that for the above vms qemu and dumpxml files are empty.

Actual results:
from must-gather output
=======================
[must-gather-kxrjb] POD 2022-02-26T22:34:11.269160117Z sh -c gather_vm_by_pod_name $1 – must-gather-alternate-unprivileged_virt-launcher-must-gather-alternate-vm-0-1645914515-3829352q9vt
[must-gather-kxrjb] POD 2022-02-26T22:34:11.269160117Z sh -c gather_vm_by_pod_name $1 – must-gather-alternate-unprivileged_virt-launcher-must-gather-alternate-vm-1-1645914516-495725m5rrx
[must-gather-kxrjb] POD 2022-02-26T22:34:11.269160117Z sh -c gather_vm_by_pod_name $1 – must-gather-alternate-unprivileged_virt-launcher-must-gather-alternate-vm-2-1645914517-578103zzqq2
[must-gather-kxrjb] POD 2022-02-26T22:34:11.269160117Z sh -c gather_vm_by_pod_name $1 – node-gather-unprivileged_virt-launcher-must-gather-vm-1645914381-3732803-l7fh7
[must-gather-kxrjb] POD 2022-02-26T22:34:11.280479341Z inspecting must-gather-alternate-vm-1-1645914516
[must-gather-kxrjb] POD 2022-02-26T22:34:11.281301463Z inspecting must-gather-vm-1645914381-3732803
[must-gather-kxrjb] POD 2022-02-26T22:34:11.301879700Z inspecting must-gather-alternate-vm-2-1645914517
[must-gather-kxrjb] POD 2022-02-26T22:34:11.505544921Z Wrote inspect data to /must-gather.
[must-gather-kxrjb] POD 2022-02-26T22:34:11.514110272Z Wrote inspect data to /must-gather.
[must-gather-kxrjb] POD 2022-02-26T22:34:11.530177210Z Wrote inspect data to /must-gather.
[must-gather-kxrjb] POD 2022-02-26T22:34:11.548382558Z Wrote inspect data to /must-gather.
[must-gather-kxrjb] POD 2022-02-26T22:34:11.706507494Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-1-1645914516" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:11.755581294Z Wrote inspect data to /must-gather.
[must-gather-kxrjb] POD 2022-02-26T22:34:11.761502617Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-2-1645914517" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:11.765013922Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-0-1645914515" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:12.524118910Z error: failed to get domain 'must-gather-alternate-unprivileged_must-gather-alternate-vm-2-1645914517'
[must-gather-kxrjb] POD 2022-02-26T22:34:12.315193717Z error: failed to get domain 'must-gather-alternate-unprivileged_must-gather-alternate-vm-1-1645914516'
[must-gather-kxrjb] POD 2022-02-26T22:34:12.341134069Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:12.524118910Z error: failed to get domain 'must-gather-alternate-unprivileged_must-gather-alternate-vm-0-1645914515'
[must-gather-kxrjb] POD 2022-02-26T22:34:12.530432780Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:12.530432780Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:12.754122038Z cat: /var/log/libvirt/qemu/must-gather-alternate-unprivileged_must-gather-alternate-vm-1-1645914516.log: No such file or directory
[must-gather-kxrjb] POD 2022-02-26T22:34:12.756879309Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:12.983146862Z cat: /var/log/libvirt/qemu/must-gather-alternate-unprivileged_must-gather-alternate-vm-2-1645914517.log: No such file or directory
[must-gather-kxrjb] POD 2022-02-26T22:34:13.000909039Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:13.007900570Z cat: /var/log/libvirt/qemu/must-gather-alternate-unprivileged_must-gather-alternate-vm-0-1645914515.log: No such file or directory
[must-gather-kxrjb] POD 2022-02-26T22:34:13.021278144Z command terminated with exit code 1
[must-gather-kxrjb] POD 2022-02-26T22:34:14.895345163Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-1-1645914516" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:15.147782499Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-2-1645914517" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:15.188491955Z Defaulted container "virt-handler" out of: virt-handler, virt-launcher (init)
[must-gather-kxrjb] POD 2022-02-26T22:34:15.283093065Z error: pod, type/name or --filename must be specified
[must-gather-kxrjb] POD 2022-02-26T22:34:15.447092057Z error: pod, type/name or --filename must be specified
[must-gather-kxrjb] POD 2022-02-26T22:34:15.496093501Z Error from server (NotFound): virtualmachineinstances.kubevirt.io "must-gather-alternate-vm-0-1645914515" not found
[must-gather-kxrjb] POD 2022-02-26T22:34:15.830699755Z error: pod, type/name or --filename must be specified
=============================
gather_vm_by_pod_name(), line 57 determined the vm name to be "must-gather-alternate-vm-1-1645914516", "must-gather-alternate-vm-2-1645914517" and "must-gather-alternate-vm-0-1645914515", while the actual vm names are:
=============================
[cnv-qe-jenkins@c01-dbn-410-jxsmg-executor ~]$ kubectl get vm -A
NAMESPACE NAME AGE STATUS READY
must-gather-alternate-unprivileged must-gather-alternate-vm-0-1645914515-3829353 38m Running True
must-gather-alternate-unprivileged must-gather-alternate-vm-1-1645914516-4957256 38m Running True
must-gather-alternate-unprivileged must-gather-alternate-vm-2-1645914517-5781033 38m Running True
============================

Expected results:
Correct vm data would be collected.

Additional info: