Unrecognized function or variable 'keepsize'.

[remonvandenbrandt]

Line 190 of file vdist.m refers to variable or function 'keepsize' which doesn't seem to exist.

https://github.com/geospace-code/matmap3d/blob/3a2a4851c213d11a7afdbfdb6d739442c8e8dd47/%2Bmatmap3d/vdist.m#L190C41-L190C49