Titling using file names broken with -c

[RhysU]

No idea why, but

gplot -c foo\*.dat using '"x":"y"'

is showing column headers and not filenames. This may just be me misunderstanding gnuplot.

[RhysU]

Appears that using 1:2 does what I want but not using "x":"y"

[RhysU]

Asked about a recreate at https://sourceforge.net/p/gnuplot/mailman/message/32093268/.