BUG: Removed extra newline in kcl.mod

[Manoramsharma]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y

fixes #426

2. What is the scope of this PR (e.g. component or file name):

/pkg/package/toml.go

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

After changes

[coveralls]

Pull Request Test Coverage Report for Build 10213564931

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.008%) to 40.253%

---

Totals
Change from base Build 10198962112:	-0.008%
Covered Lines:	3120
Relevant Lines:	7751

---

💛 - Coveralls

[liangyuanpeng]

Good jobs!

Could you please add a test for it?

I believe that it is like:

func TestInitEmptyPkg(t *testing.T) {
...
// test before
data1,err:=os.ReadFile("kcl.mod")
... // testing
// test after
data2,err:=os.ReadFile("kcl.mod")
assert.Equal(t, data1, data2)
}

[liangyuanpeng]

cc @zong-zhe ^^^

[Peefy]

Cloud you please leave a newline at the end of file?

[Manoramsharma]

Cloud you please leave a newline at the end of file?

Done @Peefy PTAL !!!