Bug - limit

- When the 'limit:N' filter was used, a confusing message was displayed,
  especially when there were fewer filtered tasks that the limit.

src/custom.cpp

@@ -659,8 +659,8 @@ int handleCustomReport (const std::string& report, std::string &outs)
       if (maxrows)
         out << ", " << maxrows << " shown";
 
-      if (maxlines < table.rowCount ())
-        out << ", truncated to " << maxlines-1 << " lines";
+      if (maxlines && maxlines < table.rowCount ())
+        out << ", truncated to " << maxlines - 1 << " lines";
 
       out << std::endl;
     }