Format xpress files

Author: gchatelet

ortools/math_opt/solvers/xpress.proto

@@ -21,7 +21,6 @@ message XpressInitializerProto {
   optional bool extract_names = 1;
 }
 
-
 // Xpress specific parameters for solving. See
 //   https://www.fico.com/fico-xpress-optimization/docs/latest/solver/optimizer/HTML/chapter7.html
 // for a list of possible parameters (called "controls" in Xpress).

ortools/math_opt/solvers/xpress_solver.cc

@@ -389,7 +389,9 @@ class ScopedSolverContext {
       // values depending on what is set. Since we cannot easily make this
       // distinction, we do not support objective_limit. Users should just
       // use cutoff_limit with LPs as well.
-      warnings.emplace_back("XpressSolver does not support objective_limit; use cutoff_limit instead");
+      warnings.emplace_back(
+          "XpressSolver does not support objective_limit; use cutoff_limit "
+          "instead");
     }
     if (parameters.has_best_bound_limit()) {
       warnings.emplace_back("XpressSolver does not support best_bound_limit");