#2852 plot style "with labels" silently ignores "noenhanced" setting

[Anonymous]

This is not exactly a sensible plot, but at least a self-contained example ...

$dat << EOD                                             
AB_C A_BC _ABC
1 2 3
2 3 1
3 2 1
2 1 3
EOD
set xr [0:5] 
plot for [i=1:3] $dat usin 0:i:(columnheader(i)) w labels noenhanced

If you write "noenhanxed", you get the expected error message.
(6.0pl3)

This also fails, so it's got nothing to do with the columnheader()

gnuplot> $dat2 << EOD   
3 _ABCD
2 A_BCD
4 AB_CD
1 ABC_D
EOD
set xr [-1:4]                         
plot $dat2 us 0:1 w l, $dat2 us 0:1:2 w labels noenhanced