fixing makefile processor counting

11 jobs for develop in 19 minutes and 15 seconds (queued for 4 seconds)
Status Job ID Name Coverage
  Build
passed build/linux/conda #1399970

00:03:33

passed build/linux/debug #1399971

00:06:05

passed build/manylinux/3.8 #1399968

00:02:46

passed build/manylinux/3.9 #1399969

00:02:36

 
  Test
passed test/coverage #1399974

00:09:12

66.35%
passed test/debian/3.8 #1399972

00:03:01

passed test/debian/3.9 #1399973

00:03:06

 
  Docs
passed docs/html #1399975

00:16:15

passed docs/pdf #1399976

00:02:41

 
  Deploy
passed pages #1399977

00:00:23

passed pages:deploy

00:00:10