tree, don't display a CTLESC which is there only to protect a CTL*
char (a data char that happens to have the same value). No actual
CTL* chars are printed as data, so no escaping is needed to protect
data which just happens to look the same. Dropping this avoids the
possibility of confusion/ambiguity in what the word actually contains.
NFC for any normal shell build (very little of this file gets compiled there)
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