Different output with cmd and vscode

[KUGA2]

Input file:

int f1()
{
   return 0;
}
// two empty lines


int f2()
{
   return 0;
}
// one empty line

int f3()
{
   return 0;
}

SHIFT+ALT+F:

int f1()
{
   return 0;
}
// two empty lines

int f2()
{
   return 0;
}
// one empty line

int f3()
{
   return 0;
}

astyle f.cpp:

int f1()
{
    return 0;
}
// two empty lines


int f2()
{
    return 0;
}
// one empty line

int f3()
{
    return 0;
}

There is no astyle config file.
Differences are:

• Tab size (ok, i think the 3 spaces tabs come from the vscode settings)
• Empty Line removed. Where does this come from?

VSCode About:
Version: 1.33.1 (system setup)
Commit: 51b0b28134d51361cf996d2f0a1c698247aeabd8
Date: 2019-04-11T08:27:14.102Z
Electron: 3.1.6
Chrome: 66.0.3359.181
Node.js: 10.2.0
V8: 6.6.346.32
OS: Windows_NT x64 10.0.16299