Fix pointer deference to string in error message

[Ahmad-Faizan]

Signed-off-by: Faizan Ahmad [email protected]

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Please add a summary of your change

Fixed an error message in VolumeSnapshotContent

Does your change fix a particular issue?

No
Fixes #(issue)

Please indicate you've done the following:

• Accepted the DCO. Commits without the DCO will delay acceptance.
• Created a changelog file or added /kind changelog-not-required as a comment on this pull request.
• Updated the corresponding documentation in site/content/docs/main.

[Ahmad-Faizan]

/kind changelog-not-required

[Ahmad-Faizan]

This were the original logs generated by velero:

time="2022-10-25T00:11:30Z" level=error msg="Not find %!s(*string=0xc002343d10) from the vscMap" backup=velero/staging-daily-backup-20221025000014 logSource="pkg/controller/backup_controller.go:944"
time="2022-10-25T00:11:30Z" level=error msg="Not find %!s(*string=0xc002d600a0) from the vscMap" backup=velero/staging-daily-backup-20221025000014 logSource="pkg/controller/backup_controller.go:944"

[codecov-commenter]

Codecov Report

Merging #5485 (9d01432) into main (5f43361) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main    #5485   +/-   ##
=======================================
  Coverage   40.73%   40.73%           
=======================================
  Files         238      238           
  Lines       20561    20561           
=======================================
  Hits         8375     8375           
  Misses      11571    11571           
  Partials      615      615           

Impacted Files	Coverage Δ
pkg/controller/backup_controller.go	55.23% <100.00%> (ø)

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