AntiClear (protection against /clear in bRAC)

src/main/java/net/pixtaded/crab/common/Sanitizer.java

@@ -6,6 +6,8 @@ public class Sanitizer {
         if (sanitizeNewlines) {
             sanitized = sanitized.replaceAll("\n", "\\\\n");
             if (!s.endsWith("\n")) sanitized += '\n';
+        } else {
+            sanitized = sanitized.replaceAll("\n\n+", "\n");
         }
         return sanitized;
     }
@@ -13,4 +15,4 @@ public class Sanitizer {
     public static String formatMessage(long timeMillis, String address, String content) {
         return String.format("[%td.%1$tm.%1$tY %1$tR] {%s} %s", timeMillis, address, content);
     }
-}
+}