Add checkstyle violation

mailbox-android/src/main/java/org/briarproject/mailbox/core/system/AlarmConstants.java

@@ -24,7 +24,7 @@ interface AlarmConstants {
 	/**
 	 * Request code for the broadcast intent attached to the periodic alarm.
 	 */
-	int REQUEST_ALARM = 1;
+        int REQUEST_ALARM = 1;
 
 	/**
 	 * Key for storing the process ID in the extras of the periodic alarm's