C.Lac 15/5/2018 : correction in the tree drag formulation MNH/drag_veg.f90

src/MNH/phys_paramn.f90

@@ -1233,7 +1233,7 @@ ZTIME1 = ZTIME2
 XTIME_BU_PROCESS = 0.
 XTIME_LES_BU_PROCESS = 0.
 !
-IF (LDRAGTREE) CALL DRAG_VEG(XUT,XVT,XTKET,LDEPOTREE,XVDEPOTREE, &
+IF (LDRAGTREE) CALL DRAG_VEG(XTSTEP,XUT,XVT,XTKET,LDEPOTREE,XVDEPOTREE, &
                              CCLOUD, XPABST,XTHT,XRT,XSVT,       &
                              XRHODJ,XZZ,XRUS, XRVS,              &
                              XRTKES,XRTHS, XRRS,XRSVS)