Add mnemonic for Show Annotations

In ruler context menu and Team > Show Annotations.

Bug: 427100
Change-Id: Id2bf33f3de0eca0dcb4fd003a5148a85f718c7c6
Signed-off-by: Robin Stocker <robin@nibor.org>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
diff --git a/org.eclipse.egit.ui/plugin.properties b/org.eclipse.egit.ui/plugin.properties
index 1122d34..4d27aba 100644
--- a/org.eclipse.egit.ui/plugin.properties
+++ b/org.eclipse.egit.ui/plugin.properties
@@ -356,7 +356,7 @@
 OpenCommitAction.tooltip = Open Git Commit...
 OpenCommitAction.label = Open Git Commit...
 OpenCommit.name = Open Git Commit
-ShowBlameAction_label = Show Annotations
+ShowBlameAction_label = &Show Annotations
 ShowBlameCommand.name = Show Annotations
 
 GitVariable_git_dir=The path to the .git directory for the selected or named resource