Throw if provide has space

transforms/module.js

@@ -157,6 +157,9 @@ module.exports = function(info, api) {
           throw new Error(`Multiple provides in ${info.path}`);
         }
         provide = path.value.expression.arguments[0].value;
+        if (provide.indexOf(' ') > -1) {
+          throw new Error(`Space in provide "${provide}" in ${info.path}`);
+        }
       }).remove();
 
   if (!provide) {