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()];
@@ -185,7 +185,7 @@ public class DecryptingPartInputStream extends FileInputStream {
 
   private Cipher initializeCipher(SecretKeySpec key) 
     throws InvalidKeyException, InvalidAlgorithmParameterException, 
-	   NoSuchAlgorithmException, NoSuchPaddingException, IOException 
+           NoSuchAlgorithmException, NoSuchPaddingException, IOException 
   {
     Cipher cipher      = Cipher.getInstance("AES/CBC/PKCS5Padding");
     IvParameterSpec iv = readIv(cipher.getBlockSize());
@@ -209,7 +209,7 @@ public class DecryptingPartInputStream extends FileInputStream {
       int read = super.read(buffer, offset, buffer.length-offset);
 
       if (read + offset < buffer.length) offset += read;
-      else                		       return;
+      else                               return;
     }
   }
 }