write.csv.raw colnames adds null character

[MaelAstruc]

There is a bug in write.csv.raw() with this line:

iotools/R/local.R

Line 135 in d418a82

cr = rawToChar(as.output(matrix(colnames(x),nrow=1),sep = sep))

rawToChar() is not necessary and creates a bug: writeBin() adds a null character at the end of the output if the input is a character. The file cannot be read with read.csv.raw() because the first character of the data is null (at the end of the columns names after \n).

[s-u]

Thanks!