11838 secflag tests are racy

*** 11,20 ****
--- 11,21 ----
  # http://www.illumos.org/license/CDDL.
  #
  
  #
  # Copyright 2015, Richard Lowe.
+ # Copyright 2019 Joyent, Inc.
  #
  
  /usr/bin/psecflags -s aslr -e sleep 100000 &
  pid=$!
  
*** 30,39 ****
--- 31,43 ----
  $pid:   sleep 100000
          E:      aslr
          I:      aslr
  EOF
  
+ # We need to wait for sleep to get exec()ed
+ sleep 1
+ 
  /usr/bin/psecflags $pid | grep -v '[LU]:' > /tmp/output.$$
  
  if ! diff -u /tmp/expected.$$ /tmp/output.$$; then
      exit 1;
  fi