clarify dependency in description

Author: nickwesselman

packages/app/src/cli/flags.ts

@@ -68,7 +68,8 @@ export const bulkOperationFlags = {
     env: 'SHOPIFY_FLAG_WATCH',
   }),
   'output-file': Flags.string({
-    description: 'The file path where results should be written. If not specified, results will be written to STDOUT.',
+    description:
+      'The file path where results should be written if --watch is specified. If not specified, results will be written to STDOUT.',
     env: 'SHOPIFY_FLAG_OUTPUT_FILE',
     dependsOn: ['watch'],
   }),

packages/cli/oclif.manifest.json

@@ -128,7 +128,7 @@
           "dependsOn": [
             "watch"
           ],
-          "description": "The file path where results should be written. If not specified, results will be written to STDOUT.",
+          "description": "The file path where results should be written if --watch is specified. If not specified, results will be written to STDOUT.",
           "env": "SHOPIFY_FLAG_OUTPUT_FILE",
           "hasDynamicHelp": false,
           "multiple": false,