RFR: Fix inconsistent "process weakrefs" logging

[Aleksey Shipilev]

Missed a few spots from this changeset:
 http://hg.openjdk.java.net/shenandoah/jdk/rev/7436e54a2cc5

Fix:

diff -r bf3a8554fa6f src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp
--- a/src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp        Wed Sep 26 12:55:02 2018 +0200
+++ b/src/hotspot/share/gc/shenandoah/shenandoahHeap.cpp        Wed Sep 26 13:08:21 2018 +0200
@@ -2638,15 +2638,15 @@

   if (update_refs && proc_refs && unload_cls) {
-    return "Pause Init Mark (update refs) (process refs) (unload classes)";
+    return "Pause Init Mark (update refs) (process weakrefs) (unload classes)";
   } else if (update_refs && proc_refs) {
-    return "Pause Init Mark (update refs) (process refs)";
+    return "Pause Init Mark (update refs) (process weakrefs)";
   } else if (update_refs && unload_cls) {
     return "Pause Init Mark (update refs) (unload classes)";
   } else if (proc_refs && unload_cls) {
-    return "Pause Init Mark (process refs) (unload classes)";
+    return "Pause Init Mark (process weakrefs) (unload classes)";
   } else if (update_refs) {
     return "Pause Init Mark (update refs)";
   } else if (proc_refs) {
-    return "Pause Init Mark (process refs)";
+    return "Pause Init Mark (process weakrefs)";
   } else if (unload_cls) {
     return "Pause Init Mark (unload classes)";

Thanks,
-Aleksey