`sum_sec.decdeg()` correct return value

[Mark-Eis]

https://github.com/Mark-Eis/BitsnBobs/blob/dcd3aaba1cd6e0b0781ceaa0ddb29e5add80af9e/R/coord.R#L427

sum_sec.decdeg <- function(object, ...) {
    check_dots_empty()
    with(object, (deg %% 1 * 60) %% 1 * 60))
}

[Mark-Eis]

94de14b