\x09 \x09\x09\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 geti retr dup push +2015(11b) sub jneg null puti push +10(4b) putc jump null