comment()
public
Returns comments recorded in the gzip file header, or nil if the comments
is not present.
static VALUE
rb_gzfile_comment(VALUE obj)
{
VALUE str = get_gzfile(obj)->comment;
if (!NIL_P(str)) {
str = rb_str_dup(str);
}
OBJ_TAINT(str); /* for safe */
return str;
}