message: Update comment in miniapps/solvers/lor_solvers.cpp
diff: // equivalence is shown in [2]:
  //
  // [1]. M. Gerritsma. Edge functions for spectral element methods. Spectral and
  -// High Order Methods for Partial Differential Equations (2010).
  +// High Order Methods for Partial Differential Equations. (2010)
  // [2]. C. Dohrmann. Spectral equivalence properties of higher-order tensor
  // product finite elements and applications to preconditioning. (2021)
  //
  