perldoc perltidy |grep -i qw
  Trimming whitespace around "qw" quotes
      -tqw or --trim-qw provide the default behavior of trimming spaces
      around multi-line "qw" quotes and indenting them appropriately.
      -ntqw or --notrim-qw cause leading and trailing whitespace around
      multi-line "qw" quotes to be left unchanged. This option will not
      in some versions of perl, trimming "qw" quotes changes the syntax
   ssc  st  sts  syn  t    tac tbc toc  tp   tqw  tsc w    x    bar  kis
      Perltidy indents but does not reformat comments and "qw" quotes.