helpText
auto helpText = 
q"EOS
Synopsis: tsv-append [options] [file...]
tsv-append concatenates multiple TSV files, reading from files or standard input
and writing to standard output. It is header aware ('--H|header'), writing the
header from only the first file. It also supports source tracking, adding an
indicator of original file to each row of input.
Options:
EOS";
  
		tsv_append 
		functionsstructsvariables