update test case

Author: niinpatel

test/cli/files.js

@@ -441,11 +441,11 @@ describe('files', () => runOnAndOff((thing) => {
   })
 
   it('cat non-existent file (nested)', () => {
-    return ipfs('cat QmPZ9gcCEpqKTo6aq61g2nXGUhM4iCL3ewB6LDXZCtioEB/wrong-dir/wrong-file')
+    return ipfs('cat Qmaj2NmcyAXT8dFmZRRytE12wpcaHADzbChKToMEjBsj5Z/init-docs/wrong-dir/dummy')
       .then(() => expect.fail(0, 1, 'Should have thrown an error'))
       .catch((err) => {
         expect(err).to.exist()
-        expect(err.stdout).to.contain('no file named "wrong-dir/wrong-file" under QmPZ9gcCEpqKTo6aq61g2nXGUhM4iCL3ewB6LDXZCtioEB')
+        expect(err.stdout).to.contain('no file named "wrong-dir/dummy" under Qmaj2NmcyAXT8dFmZRRytE12wpcaHADzbChKToMEjBsj5Z/init-docs')
       })
   })