fix(create-pca): update usage text and remove redundant app-name option

scripts/create-pca.js

@@ -33,9 +33,8 @@ function runAz(args, options = {}) {
 }
 
 async function main() {
-  const usageText = `Usage: ${path.basename(process.argv[1])} [options] [app-name]
+  const usageText = `Usage: ${path.basename(process.argv[1])} [options] <app-name>
 Options:
-  -n, --app-name <name>  Application display name (optional if positional app-name is provided)
   -c, --config <path>    Write config template to file (optional)
   -h, --help             Show this help message and exit`;
   let values;
@@ -45,7 +44,6 @@ Options:
       args: process.argv.slice(2),
       options: {
         help: { type: "boolean", short: "h" },
-        "app-name": { type: "string", short: "n" },
         config: { type: "string", short: "c" },
       },
       strict: true,
@@ -70,7 +68,7 @@ Options:
     process.exit(1);
   }
 
-  const appName = values["app-name"] || positionals[0] || "";
+  const appName = positionals[0] || "";
   const configPath = values.config || "";
 
   if (!appName) {