Merge pull request #811 from terrelln/segmentSize

[cover] Fix end condition for small dictionary

diff --cc lib/dictBuilder/cover.c
index cc4b13376095b61b7c7eb8779754ec656609b0e0,64f23f23cb80cd3d5dc31e5b7bc59ad2cdcd5604..117acbf7b139083f0a88b64bfd589dc41734de46
--- 1/lib/dictBuilder/cover.c
--- 2/lib/dictBuilder/cover.c
+++ b/lib/dictBuilder/cover.c
@@@ -999,8 -998,9 +1003,9 @@@ ZDICTLIB_API size_t ZDICT_optimizeTrain
        data->parameters.k = k;
        data->parameters.d = d;
        data->parameters.steps = kSteps;
+       data->parameters.zParams.notificationLevel = g_displayLevel;
        /* Check the parameters */
 -      if (!COVER_checkParameters(data->parameters)) {
 +      if (!COVER_checkParameters(data->parameters, dictBufferCapacity)) {
          DISPLAYLEVEL(1, "Cover parameters incorrect\n");
          free(data);
          continue;