Report the use of undesirable operators, e.g. ::: or <<- and suggest an alternative.

## Usage

undesirable_operator_linter(op = default_undesirable_operators)

## Arguments

op

Named character vector. names(op) correspond to undesirable operators, while the values give a description of why the operator is undesirable. If NA, no additional information is given in the lint message. Defaults to default_undesirable_operators. To make small customizations to this list, use modify_defaults().