whitespace cleanup

//FREEBIE

Closes #1779

src/org/thoughtcrime/securesms/crypto/DecryptingPartInputStream.java

@@ -100,7 +100,7 @@ public class DecryptingPartInputStream extends FileInputStream {
   private int readFinal(byte[] buffer, int offset, int length) throws IOException {
     try {
       int flourish = cipher.doFinal(buffer, offset);
-      //			mac.update(buffer, offset, flourish);
+      //mac.update(buffer, offset, flourish);
 
       byte[] ourMac   = mac.doFinal();
       byte[] theirMac = new byte[mac.getMacLength()];