fix: update flag description and remove backticks

Brendan Lynchrequested to merge
bl-update-description into main

Description

In internal/cmdutils/repo_override.go, the flag description used backticks around both OWNER/REPO and GROUP/NAMESPACE/REPO.

However, spf13/pflag's UnquoteUsage() function treats the first backtick pair as the flag value name and removes it from the usage string. This left the second backtick pair intact, creating inconsistency.

Changes in this MR

Remove the backticks from the flag description since they're not needed

Related issues

Edited by Brendan Lynch

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