TermBuf::QuirkOverrides
Stability: internal
The TERMBUF_QUIRKS escape hatch, over what detection decided a terminal
gets wrong.
TERMBUF_QUIRKS=+per_code_point_columns
TERMBUF_QUIRKS=-per_code_point_columns
TERMBUF_QUIRKS=none
Same shape as TERMBUF_CAPS: a bare name or a leading + turns a quirk
on, - turns it off, none clears the lot, and an unknown name is
reported rather than raised on.
Constants
VARIABLE = "TERMBUF_QUIRKS"
The variable itself, deliberately not application specific.