Frameworks/base: Use Arrays.toString

Fix a couple of cases where Arrays.toString should be used.

Bug: 19797138
Change-Id: I905fc79e63face9b26975320a92086c732bf6316
diff --git a/core/java/android/content/pm/ApplicationInfo.java b/core/java/android/content/pm/ApplicationInfo.java
index 0633bff..b499af5 100644
--- a/core/java/android/content/pm/ApplicationInfo.java
+++ b/core/java/android/content/pm/ApplicationInfo.java
@@ -746,7 +746,7 @@
             pw.println(prefix + "splitPublicSourceDirs=" + Arrays.toString(splitPublicSourceDirs));
         }
         if (resourceDirs != null) {
-            pw.println(prefix + "resourceDirs=" + resourceDirs);
+            pw.println(prefix + "resourceDirs=" + Arrays.toString(resourceDirs));
         }
         if ((flags&DUMP_FLAG_DETAILS) != 0 && seinfo != null) {
             pw.println(prefix + "seinfo=" + seinfo);