logd: statistics: missing comma

regression from statistics rewrite series resulted in build breakage

Change-Id: I71b532b23437b9b5f3af47b18c9110f3d7dda48a
diff --git a/logd/LogStatistics.cpp b/logd/LogStatistics.cpp
index 19d599c..accd660 100644
--- a/logd/LogStatistics.cpp
+++ b/logd/LogStatistics.cpp
@@ -154,7 +154,7 @@
     static const size_t total_len = 70;
 
     output.appendFormat("%s%*s\n", name.string(),
-        (int)std::max(total_len - name.length() - 1, size.length() + 1)
+        (int)std::max(total_len - name.length() - 1, size.length() + 1),
         size.string());
 }