A11y - Improvements on dashboard page - Change size title and screen reader label from `+2, -1` to `added 2, removed 1 lines`. It should be clearer. - Skip `,` by screen reader in Reviewers column (attention set) Change-Id: I3fb5994b827a6923c25849a782d85f9180e2ab7a

diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item.js b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item.js
index cb1905b..b2ce8fd 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item.js
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item.js

@@ -214,7 +214,7 @@
         isNaN(change.insertions + change.deletions)) {
       return 'Size unknown';
     } else {
-      return `+${change.insertions}, -${change.deletions}`;
+      return `added ${change.insertions}, removed ${change.deletions} lines`;
     }
   }
 

diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_html.js b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_html.js
index 48aab4c..0fd3030 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_html.js
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_html.js

@@ -200,7 +200,7 @@
           change="[[change]]"
           account="[[reviewer]]"
         ></gr-account-link
-        ><span class="lastChildHidden">, </span>
+        ><span class="lastChildHidden" aria-hidden="true">, </span>
       </template>
       <template is="dom-if" if="[[_computeAdditionalReviewersCount(change)]]">
         <span title="[[_computeAdditionalReviewersTitle(change, config)]]">

diff --git a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.js b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.js
index e49da7e..6d51310 100644
--- a/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.js
+++ b/polygerrit-ui/app/elements/change-list/gr-change-list-item/gr-change-list-item_test.js

@@ -233,7 +233,7 @@
     assert.equal(element._computeSizeTooltip({
       insertions: 1,
       deletions: 2,
-    }), '+1, -2');
+    }), 'added 1, removed 2 lines');
   });
 
   test('TShirt sizing', () => {