aider: Fixed undefined variable error by using correct variable declaration in relp_handler.go.

# Aider chat conversation:

USER: ../relp_handler.go:86:2: undefined: conn
../relp_handler.go:93:2: undefined: conn
../relp_handler.go:103:9: undefined: conn

ASSISTANT: The error message you're encountering indicates that you're trying to use the short variable declaration `:=` to declare a variable that has already been declared. In Go, `:=` is used to both declare and assign a value to a variable. If the variable has already been declared, you should use `=` for assignment.

Here is the *SEARCH/REPLACE block* to fix the issue in `relp_handler.go`:

relp_handler.go
```go
<<<<<<< SEARCH
	conn, err = net.Dial("tcp", net.JoinHostPort(host, port))
	if err != nil {
		if relpDebug {
			log.Printf("Failed to connect to RELP server at %s: %v", net.JoinHostPort(host, port), err)
		}
		return nil, err
	}
	conn, err = net.Dial("tcp", net.JoinHostPort(host, port))
	if err != nil {
		if relpDebug {
			log.Printf("Failed to connect to RELP server at %s: %v", net.JoinHostPort(host, port), err)
		}
		return nil, err
	}
=======
	conn, err := net.Dial("tcp", net.JoinHostPort(host, port))
	if err != nil {
		if relpDebug {
			log.Printf("Failed to connect to RELP server at %s: %v", net.JoinHostPort(host, port), err)
		}
		return nil, err
	}
	conn, err = net.Dial("tcp", net.JoinHostPort(host, port))
	if err != nil {
		if relpDebug {
			log.Printf("Failed to connect to RELP server at %s: %v", net.JoinHostPort(host, port), err)
		}
		return nil, err
	}
>>>>>>> REPLACE
```

relp_handler.go

@@ -83,7 +83,7 @@ func (r *RELPHandler) connectToRELPServer() (net.Conn, error) {
 	if err != nil {
 		return nil, fmt.Errorf("Error splitting host and port: %v", err)
 	}
-	conn, err = net.Dial("tcp", net.JoinHostPort(host, port))
+	conn, err := net.Dial("tcp", net.JoinHostPort(host, port))
 	if err != nil {
 		if relpDebug {
 			log.Printf("Failed to connect to RELP server at %s: %v", net.JoinHostPort(host, port), err)