roachtest: add validation for version binary override flag #133191
Merged
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Previously the help message for this flag had an incorrect example usage that listed the version without the leading
v
. Doing this would cause the override to never be used as the override checked for version with the leadingv
.This change fixes the usage message as well as adds validation that overrided versions are parseable.
Release note: none
Fixes: none
Epic: none