\x09 \x09 \x09\x09\x09 \x09\x09\x09 \x09 \x09 \x09 \x09\x09 \x09 \x09 \x09 \x09 \x09 \x09 \x09\x09 \x09
Note that non-ascii characters in the above source code will be escaped (such as \x9f).
Disassemble:
mark null push +0(0b) dup getc retr dup push +58(6b) sub jneg +0(0b) dup push +85(7b) sub jneg null mark +0(0b) putc jump null