Improve help display

src/PetscAdLemMain.cxx

@@ -29,7 +29,7 @@ static char help[] = "Solves AdLem model. Equations solved: "
     " --------------------------------\n"
     " k = 0 in brain tissue. Value of k is either 0 in CSF or non-zero, can be chosen by the user.\n"
     " Choosing non-zero k relaxes the Incompressibility Constraint (IC) in CSF.\n"
-    "Arguments: \n"
+    "Arguments: \n\n"
     "-muFile			: Lame parameter mu image file. Use this if mu is spatially varying\n"
     "         If piecewise constant in tissue and in CSF, use -parameters instead.\n\n"
     "-parameters		: Lame parameters separated by comma WITHOUT SPACE in the "
@@ -40,8 +40,8 @@ static char help[] = "Solves AdLem model. Equations solved: "
     "with the way most atrophy measurement tools compute divergence from the transformation field in image space. Thus use this "
     "option if you want the divergence of the velocity field obtained from the model has to exactly match the divergenc/atrophy "
     "you prescribe when computed with following stencil: (vx(i+1,j)-vx(i-1,j))/(2*hx) + (vy(i,j+1)-vy(i,j-1)/(2*hy)). \n"
-    "If NOT provided, the output velocity field will have divergence compatible to the one computed internally in the staggered grid."
-    "--no_lame_in_rhs           : If given, momentum equation will be mu div(u) + grad(p) = grad(a). So lambda is irrelevant and mu only in LHS."
+    "If NOT provided, the output velocity field will have divergence compatible to the one computed internally in the staggered grid.\n\n"
+    "--no_lame_in_rhs           : If given, momentum equation will be mu div(u) + grad(p) = grad(a). So lambda is irrelevant and mu only in LHS.\n\n"
     "-boundary_condition	: Possible values: dirichlet_at_walls dirichlet_at_skull.\n\n"
     "--relax_ic_in_csf		: If given, relaxes IC, that is non-zero k. If not given, modifies"
     "\natrophy map distributing uniform volume change in CSF to compensate global volume change in"