RFR: 8154235: Using deprecated flags converted to UL shows wrong hint

[Robbin Ehn]

Hi all,

Please review.

When using a deprecated flag that have been converted to UL,
we print the wrong hint when it contains more than one tag.

Bug: https://bugs.openjdk.java.net/browse/JDK-8154235

Thanks!

/Robbin

diff -r 6acb563d8621 src/share/vm/runtime/arguments.cpp
--- a/src/share/vm/runtime/arguments.cpp	Thu Apr 14 08:30:37 2016 +0200
+++ b/src/share/vm/runtime/arguments.cpp	Thu Apr 14 14:18:30 2016 +0200
@@ -998,7 +998,7 @@
    int max_tags = sizeof(tagSet)/sizeof(tagSet[0]);
    for (int i = 0; i < max_tags && tagSet[i] != LogTag::__NO_TAG; i++) {
      if (i > 0) {
-      strncat(tagset_buffer, ",", max_tagset_len - strlen(tagset_buffer));
+      strncat(tagset_buffer, "+", max_tagset_len - strlen(tagset_buffer));
      }
      strncat(tagset_buffer, LogTag::name(tagSet[i]), max_tagset_len - 
strlen(tagset_buffer));
    }