> time ./tests/sleep
./tests/sleep 0,00s user 0,00s system 0% cpu 3,509 total
> time PREENY_DEBUG=1 LD_PRELOAD=./x86_64-linux-gnu/desleep.so ./tests/sleep
+++ Just spared you 1 seconds!
+++ Just spared you 1000000 microseconds!
+++ Just spared you 1 seconds and 500000000 nanoseconds!
PREENY_DEBUG=1 LD_PRELOAD=./x86_64-linux-gnu/desleep.so ./tests/sleep 0,00s user 0,00s system 63% cpu 0,001 total