manual update command and improve error logging

Author: Kaleidox

src/main/java/org/comroid/api/text/StringUtil.java

@@ -0,0 +1,11 @@
+package org.comroid.api.text;
+
+public final class StringUtil {
+    public static String maxLength(String string, int maxLength) {
+        return string.length() <= maxLength ? string : string.substring(0, maxLength);
+    }
+
+    private StringUtil() {
+        throw new UnsupportedOperationException();
+    }
+}