only print the file names of changed files

[haoxins]

for now, when I run js-beautify from cli, it will print all the file names passed to js-beautify, but some are not changed.

So, it's better to print the names of changed files only.

[haoxins]

glad to make a pr if you accept this point.

[bitwiseman]

I'm not opposed to changes on this front, but I want to understand what you're pointing at a bit better.
Could you give an example of the command-line you call and the output?

[haoxins]

Forgive my pool English 😢

When I run the cli with -r flag, it will display all the files passed to the cli. Such as I have some files

a.js
b.js
c.js

Always show

beautified a.js
beautified b.js
beautified c.js

But, not all the files are changed, some files have been beautified.
Only display the changed files, such as (If only b.js is changed)

beautified b.js

[bitwiseman]

Ah, ok.

[bitwiseman]

Updated and added tests. @coderhaoxin - please take a look and tell me if the behavior is still what you'd expect.