51ab885e68c929274d8dd5f94187da2831954ba5 test suite: fix naming in graph when a point is highlighted

================================ DYNARE MAKE CHECK MATLAB RESULTS ================================ | TOTAL: 555 | PASS: 540 | FAIL: 10 | XFAIL: 5 | XPASS: 0 | LIST OF FAILED TESTS: | * estimation/MH_recover/fs2000_recover.mod | * identification/rbc_ident/rbc_ident_varexo_only.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME.mod | * kalman/likelihood_from_dynare/fs2000_corr_ME_missing.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME.mod | * kalman/likelihood_from_dynare/fs2000_uncorr_ME_missing.mod | * ep/rbc2.mod | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#21 | * ../matlab/modules/dseries/src/@dseries/subsasgn.m#22 | * ../matlab/prior_draw.m#1 | | LIST OF 10 SLOWEST TESTS: | * optimizers/fs2000_6.mod - 2256.990000 | * walsh.mod - 1170.820000 | * gsa/ls2003.mod - 866.760000 | * optimizers/fs2000_2.mod - 764.270000 | * estimation/TaRB/fs2000_tarb.mod - 298.300000 | * optimizers/fs2000_10.mod - 258.940000 | * ms-sbvar/test_ms_variances_repeated_runs.mod - 203.260000 | * conditional_forecasts/2/fs2000_est.mod - 185.380000 | * gsa/ls2003a.mod - 158.080000 | * gsa/cod_ML_morris/cod_ML_morris.mod - 112.360000

Dynare failed to compile or Octave testsuite failed to run

A full log can be found at http://www.dynare.org/testsuite/master