fixed failing regtest on travis

regtest/ves/rt-le-2d-output-mismatch-and-final-output/bias.ves1.iter-9.data.reference

@@ -8439,7 +8439,7 @@
    -0.251327412    2.073451151   -2.375204684    0.517089911    6.154188441
    -0.188495559    2.073451151   -2.431626273    1.263416858    4.929349565
    -0.125663706    2.073451151   -2.531224543    1.879326826    3.145120407
-   -0.062831853    2.073451151   -2.663752086    2.303306770    1.028124898
+   -0.062831853    2.073451151   -2.663752086    2.303306770    1.028124897
     0.000000000    2.073451151   -2.815860517    2.498719040   -1.176728614
     0.062831853    2.073451151   -2.972740062    2.455787682   -3.230980260
     0.125663706    2.073451151   -3.119798605    2.190876449   -4.925743017