message: correct sample runs
diff: // MFEM Example 1 - NURBS Version
  //
  -// Compile with: make ex1
  +// Compile with: make nurbs_ex1
  //
  -// Sample runs: ex1 -m ../../data/square-disc.mesh
  -// ex1 -m ../../data/star.mesh
  -// ex1 -m ../../data/escher.mesh
  -// ex1 -m ../../data/fichera.mesh
  -// ex1 -m ../../data/square-disc-p2.vtk -o 2
  -// ex1 -m ../../data/square-disc-p3.mesh -o 3
  -// ex1 -m ../../data/square-disc-nurbs.mesh -o -1
  -// ex1 -m ../../data/disc-nurbs.mesh -o -1
  -// ex1 -m ../../data/pipe-nurbs.mesh -o -1
  -// ex1 -m ../../data/star-surf.mesh
  -// ex1 -m ../../data/square-disc-surf.mesh
  -// ex1 -m ../../data/inline-segment.mesh
  -// ex1 -m ../../data/amr-quad.mesh
  -// ex1 -m ../../data/amr-hex.mesh
  -// ex1 -m ../../data/fichera-amr.mesh
  -// ex1 -m ../../data/mobius-strip.mesh
  -// ex1 -m ../../data/mobius-strip.mesh -o -1 -sc
  -// ex1 -m ../../data/beam-hex-nurbs.mesh -pm 1 -ps 2
  +// Sample runs: nurbs_ex1 -m square-nurbs.mesh -o 2 -no-ibp
  +// nurbs_ex1 -m cube-nurbs.mesh -o 2 -no-ibp
  +// nurbs_ex1 -m pipe-nurbs-2d.mesh -o 2 -no-ibp
  +// nurbs_ex1 -m ../../data/square-disc-nurbs.mesh -o -1
  +// nurbs_ex1 -m ../../data/disc-nurbs.mesh -o -1
  +// nurbs_ex1 -m ../../data/pipe-nurbs.mesh -o -1
  +// nurbs_ex1 -m ../../data/beam-hex-nurbs.mesh -pm 1 -ps 2
  //
  // Description: This example code demonstrates the use of MFEM to define a
  // simple finite element discretization of the Laplace problem
  @@ -185,7 +174,7 @@ int main(int argc, char *argv[])
  // elements.
  {
  int ref_levels =
  - (int)floor(log(50000./mesh->GetNE())/log(2.)/dim);
  + (int)floor(log(5000./mesh->GetNE())/log(2.)/dim);
  for (int l = 0; l < ref_levels; l++)
  {
  mesh->UniformRefinement();
  @@ -343,7 +332,7 @@ int main(int argc, char *argv[])
  #ifndef MFEM_USE_SUITESPARSE
  // 10. Define a simple Jacobi preconditioner and use it to
  - // solve the system A X = B with GMRES.
  + // solve the system A X = B with PCG.
  GSSmoother M(A);
  PCG(A, M, B, X, 1, 200, 1e-12, 0.0);
  #else
  