Reduce Choleski solver verbosity

As the solver is called while committing parameters a long history spoils the output a lot.
Use proper flags instead of DT_DEBUG_ALWAYS

src/iop/choleski.h

@@ -301,27 +301,27 @@ static inline gboolean _solve_hermitian(const float *const restrict A,
     dt_free_align(L);
     dt_control_log(_("Choleski decomposition failed to allocate memory,"
                      " check your RAM settings"));
-    dt_print(DT_DEBUG_ALWAYS, "Choleski decomposition failed to allocate memory,"
-             " check your RAM settings\n");
+    dt_print(DT_DEBUG_PIPE, "Choleski decomposition failed to allocate memory,"
+             " check your RAM settings");
     return FALSE;
   }
 
   // LU decomposition
   valid = (checks) ? _choleski_decompose_safe(A, L, n) :
                      _choleski_decompose_fast(A, L, n) ;
-  if(!valid) dt_print(DT_DEBUG_ALWAYS, "Cholesky decomposition returned NaNs");
+  if(!valid) dt_print(DT_DEBUG_PARAMS, "Cholesky decomposition returned NaNs");
 
   // Triangular descent
   if(valid)
     valid = (checks) ? _triangular_descent_safe(L, y, x, n) :
                        _triangular_descent_fast(L, y, x, n) ;
-  if(!valid) dt_print(DT_DEBUG_ALWAYS, "Cholesky LU triangular descent returned NaNs");
+  if(!valid) dt_print(DT_DEBUG_PARAMS, "Cholesky LU triangular descent returned NaNs");
 
   // Triangular ascent
   if(valid)
     valid = (checks) ? _triangular_ascent_safe(L, x, y, n) :
                        _triangular_ascent_fast(L, x, y, n);
-  if(!valid) dt_print(DT_DEBUG_ALWAYS, "Cholesky LU triangular ascent returned NaNs");
+  if(!valid) dt_print(DT_DEBUG_PARAMS, "Cholesky LU triangular ascent returned NaNs");
 
   dt_free_align(x);
   dt_free_align(L);
@@ -394,7 +394,7 @@ static inline gboolean pseudo_solve(float *const restrict A,
   gboolean valid = TRUE;
   if(m < n)
   {
-    dt_print(DT_DEBUG_ALWAYS, "Pseudo solve: cannot cast %zu × %zu matrice", m, n);
+    dt_print(DT_DEBUG_PARAMS, "Pseudo solve: cannot cast %zu × %zu matrice", m, n);
     return FALSE;
   }
 
@@ -405,6 +405,8 @@ static inline gboolean pseudo_solve(float *const restrict A,
   {
     dt_free_align(A_square);
     dt_free_align(y_square);
+    dt_print(DT_DEBUG_PIPE, "Choleski decomposition failed to allocate memory,"
+             " check your RAM settings");
     dt_control_log(_("Choleski decomposition failed to allocate memory,"
                      " check your RAM settings"));
     return FALSE;