Allow for passing `-n` option to `whereami` #751

Job	Run time
ruby-versions / Generate Ruby versions	4s
test (3.4)	4m 44s
test (3.3)	4m 45s
test (head)	5m 43s
test (3.2)	4m 57s
test (4.0)	5m 26s
	25m 39s

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