Fix typo

2 jobs for master in 50 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
passed #5518
testsuite_matlab

00:00:50

failed #5519
testsuite_octave

00:00:50

 
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