title: size limit of printf conversion specification
body: <p><code>printf</code> conversion specifications are <code>%</code> followed by flags, width, precision, length modifier and conversion specifier. Is there practical limit to size of a conversion specification?</p>
  
  <p>I.e. <code>%s</code> is 2 chars long, while <code>%08.2f</code> is 6 chars long. My question is, what is the length of the maximal single specification in a format string that can be created, according to C99 standard?</p>