Add linebreaks between logs in netpolicy dump.

Test: check dumpsys netpolicy
Change-Id: I7d8822b0caa1914b8c63d7493785e5098b88a87e
diff --git a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
index 2992877..dcfd3f2 100644
--- a/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
+++ b/services/core/java/com/android/server/net/NetworkPolicyManagerService.java
@@ -3472,10 +3472,10 @@
                 }
 
                 fout.println();
-                fout.print("mRestrictBackgroundLowPowerMode: " + mRestrictBackgroundLowPowerMode);
-                fout.print("mRestrictBackgroundBeforeBsm: " + mRestrictBackgroundBeforeBsm);
-                fout.print("mLoadedRestrictBackground: " + mLoadedRestrictBackground);
-                fout.print("mRestrictBackgroundChangedInBsm: " + mRestrictBackgroundChangedInBsm);
+                fout.println("mRestrictBackgroundLowPowerMode: " + mRestrictBackgroundLowPowerMode);
+                fout.println("mRestrictBackgroundBeforeBsm: " + mRestrictBackgroundBeforeBsm);
+                fout.println("mLoadedRestrictBackground: " + mLoadedRestrictBackground);
+                fout.println("mRestrictBackgroundChangedInBsm: " + mRestrictBackgroundChangedInBsm);
 
                 fout.println();
                 fout.println("Network policies:");