from the FIXES file:

Oct 20, 1988:
        Fixed %c:  if expr is numeric, use numeric value;
        otherwise print 1st char of string value.  still
        doesn't work if the value is 0 -- won't print \0.

This bugged me because it prevents awk from being a general-purpose
decimal to bytestream converter (also GNU awk gets this right.)

Look in /usr/share/man/cat4/sun3/leds.0 and you see:

           # echo 0 0 0 5 0 0 0 8 254 253 250 247 239 223 175 127 |
             awk '{ for (i=1;i<=NF;i++) printf("%c",$i+0); }' > /dev/leds

This used to fail since "0" did not produce a \0 on stdout.

It doesn't make any sense to me to fix awksprintf() the same way I did
awkprintf() since sticking a \0 in a string ends it.

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