Use gerrit's spelling of 'Patch Set' for ITS comments

ITS comments for new patch sets use 'Patch-Set' (with dash), while
upstream gerrit uses 'Patch Set' (without dash). We also drop the dash
in ITS comments to match gerrit's spelling.

Change-Id: I57e53dfccacbcc1885a96663a91dd9dcecac08ee

hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/workflow/GerritHookFilterAddRelatedLinkToChangeId.java

diff --git a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/workflow/GerritHookFilterAddRelatedLinkToChangeId.java b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/workflow/GerritHookFilterAddRelatedLinkToChangeId.java
index a404fea..0d1e5c1 100644
--- a/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/workflow/GerritHookFilterAddRelatedLinkToChangeId.java
+++ b/hooks-its/src/main/java/com/googlesource/gerrit/plugins/hooks/workflow/GerritHookFilterAddRelatedLinkToChangeId.java
@@ -53,7 +53,7 @@
 
     for (String issue : issues) {
       its.addRelatedLink(issue, new URL(patchsetCreated.change.url),
-          "Gerrit Patch-Set " + patchsetCreated.change.id + "/"
+          "Gerrit Patch Set " + patchsetCreated.change.id + "/"
               + patchsetCreated.patchSet.number);
     }
   }