address comments

Author: jafu888

constraintlayout/constraintlayout/src/main/java/androidx/constraintlayout/widget/ConstraintSet.java

@@ -4585,7 +4585,7 @@ public void load(Context context, XmlPullParser parser) {
                     case XmlResourceParser.START_TAG:
                         tagName = parser.getName();
                         if (DEBUG) {
-                            Log.v(TAG, Debug.getLoc() +" " +document+ " tagName=" + tagName);
+                            Log.v(TAG, Debug.getLoc() + " " + document + " tagName=" + tagName);
                         }
                         switch (tagName) {
                             case "Constraint":

constraintlayout/core/src/main/java/androidx/constraintlayout/core/LinearSystem.java

@@ -767,7 +767,7 @@ private int optimize(Row goal, boolean b) {
             System.out.println("\n****************************");
             System.out.println("*       OPTIMIZATION       *");
             System.out.println("* mNumColumns: " + mNumColumns);
-            System.out.println("* GOAL: " + goal+ " "+ b);
+            System.out.println("* GOAL: " + goal + " " + b);
             System.out.println("****************************\n");
         }