Github user myui commented on a diff in the pull request:
https://github.com/apache/incubator-hivemall/pull/110#discussion_r135458769
--- Diff: core/src/main/java/hivemall/utils/lang/StringUtils.java ---
@@ -172,12 +172,17 @@ public static void clear(@Nonnull final StringBuilder
buf) {
public static String concat(@Nonnull final List<String> list, @Nonnull
final String sep) {
--- End diff --
former is expected.
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