simplify writing of vspace

2 jobs for master in 54 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Test
passed #5529
testsuite_matlab

00:00:34

failed #5530
testsuite_octave

00:00:54

 
Name Stage Failure
failed
testsuite_octave Test
    subsref at line 28 column 19
write at line 72 column 9
subsref at line 28 column 19
write at line 92 column 5
subsref at line 28 column 19
createReport at line 299 column 1
runtest at line 29 column 1
make: *** [Makefile:7: check-octave] Error 1
ERROR: Job failed: exit status 1