Port "Add back warning for dual L1-loss SVM and dual L1-loss SVR"

Ported from cjlin1/liblinear@7634ea2

Author: bwaldvogel

src/main/java/de/bwaldvogel/liblinear/Linear.java

@@ -767,6 +767,8 @@ private static int solve_l2r_l1l2_svc(Problem prob, Parameter param, double[] w,
         }
 
         info("%noptimization finished, #iter = %d%n", iter);
+        if (solver_type == L2R_L1LOSS_SVC_DUAL && iter >= max_iter)
+            info("%nWARNING: reaching max number of iterations%nUsing -s 2 may be faster (also see FAQ)%n%n");
 
         // calculate objective value
 
@@ -959,6 +961,8 @@ else if (Gn > H * beta[i])
         }
 
         info("%noptimization finished, #iter = %d%n", iter);
+        if (solver_type == L2R_L1LOSS_SVR_DUAL && iter >= max_iter)
+            info("%nWARNING: reaching max number of iterations%nUsing -s 11 may be faster%n%n");
 
         // calculate objective value
         double v = 0;