Provided by: systemtap-doc_2.3-1ubuntu1_all
function::text_strn - Escape any non-printable chars in a string
input the string to escape len maximum length of string to return (0 implies MAXSTRINGLEN) quoted put double quotes around the string. If input string is truncated it will have “...” after the second quote
This function accepts a string of designated length, and any ASCII characters that are not printable are replaced by the corresponding escape sequence in the returned string.