Remove line wrapping for publickey encoding.

This adds unnecessary whitespace in packages.xml and is contrary to the approach
taken by certs.  Remove it.

Change-Id: I217bb94af97c3b38dab1fd806ffe7b7600fa6fdd
diff --git a/services/core/java/com/android/server/pm/KeySetManagerService.java b/services/core/java/com/android/server/pm/KeySetManagerService.java
index db3ae91..c8e5c3a 100644
--- a/services/core/java/com/android/server/pm/KeySetManagerService.java
+++ b/services/core/java/com/android/server/pm/KeySetManagerService.java
@@ -488,7 +488,7 @@
     }
 
     public String encodePublicKey(PublicKey k) throws IOException {
-        return new String(Base64.encode(k.getEncoded(), 0));
+        return new String(Base64.encode(k.getEncoded(), Base64.NO_WRAP));
     }
 
     public void dumpLPr(PrintWriter pw, String packageName,