message: another try to fix doxygen comments
diff: @@ -474,7 +474,7 @@ public:
  iteration, based on the algorithm presented in [1].
  The maximum linear solver relative tolerance @a rtol_max should be < 1.
  - For @a version 1 the parameters @a alpha @and @a gamma are ignore. For @a
  + For @a version 1 the parameters @a alpha and @a gamma are ignore. For @a
  version 2 @a alpha has to be between 0 and 1 and @a alpha between 1 and 2.
  [1] Eisenstat, Stanley C., and Homer F. Walker. "Choosing the forcing terms
  