JSON output: Add missing cstring include

sedmicha · sedmicha · commit 8bf2adccb0c6 · 2024-04-02T12:29:25.000+02:00
diff --git a/src/plugins/output/json/src/SyslogSocket.cpp b/src/plugins/output/json/src/SyslogSocket.cpp
@@ -40,6 +40,7 @@
  */
 
 #include <cassert>
+#include <cstring>
 #include <stdexcept>
 
 #include <netdb.h>
