solved quote issue

Author: janvda

node-red-test/Dockerfile

@@ -16,4 +16,5 @@ COPY ./settings.js /data/settings.js
 
 # following command will add instrumentation to Node.js (= node-red)
 # RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar appmetrics = require("appmetrics");\nvar monitoring = appmetrics.monitor();\n?' /usr/src/node-red/node_modules/node-red/red.js
-RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar dash = require('appmetrics-dash');\ndash.attach();\n?' /usr/src/node-red/node_modules/node-red/red.js
+
+RUN sed -i 's?#!/usr/bin/env node?#!/usr/bin/env node;\n\n/* JVA: adding appmetrics instructions*/\nvar dash = require("appmetrics-dash");\ndash.attach();\n?' /usr/src/node-red/node_modules/node-red/red.js