Fix: skyapm-egg-require failed to parse npm command args (#108)

accidentally add an extra '!'

modules/skyapm-egg-require/index.js

@@ -18,7 +18,7 @@
 "use strict";
 
 const argString = process.argv.slice(2);
-const args = JSON.parse(!argString && argString.length > 0 ? argString : "{}");
+const args = JSON.parse(argString && argString.length > 0 ? argString : "{}");
 let serviceName;
 let directServers;
 let authentication;