crm report: improve error handling on the faulty pacemaker.log

[zzhou1]

Came across a surprising error message down below [1].

1. Probably to ignore ZERO or corrupted .xz file?
2. Probably to include uncompressed files too?
3. Let the error message better to add the faulty node name

[1]

15sp6-3:~ # crm report -f 5M
ERROR: When reading file "/var/log/pacemaker/pacemaker.log-20240415.xz": Compressed file ended before the end-of-stream marker was reached

15sp6-4:~ # l /var/log/pacemaker/pacemaker.log*

-rw-rw---- 1 hacluster haclient 36584 Apr 6 22:57 /var/log/pacemaker/pacemaker.log-20240407.xz -rw-rw---- 1 hacluster haclient 6556780 Apr 15 10:17 /var/log/pacemaker/pacemaker.log-20240415 -rw-rw---- 1 hacluster haclient 0 Apr 15 10:17 /var/log/pacemaker/pacemaker.log-20240415.xz -rw-rw---- 1 hacluster haclient 17064 Apr 15 18:29 /var/log/pacemaker/pacemaker.log-20240416.xz