John D Pell 2ada414266 plugins/percol: use _command_exists ...

Addresses bash-it/bash-it#1632

And use `_log_warning`.

Alsö, code style cleanup: quote things, handle unbound parameters, &c.

Alsö alsö, short-circuit if not installed or inadequate _Bash_ version.

2021-09-24 00:38:54 -07:00

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available

plugins/percol: use _command_exists

2021-09-24 00:38:54 -07:00