Fix device_doctor build script for windows. (#1132)
Fix device_doctor build script for windows. (#1132)

* Fix device_doctor build script for windows.

The script exists after running the get dependencies command. Precede the
commands with "call" which will execute that command as well as the following build command.

* Update build.bat

Append PATH to find xcopy

* Update build.bat

Fix path to LICENSE file.

* Update salt provisioning script. (#1133)

* exclude null builds (#1134)

* Fix device_doctor build script for windows.

The script exists after running the get dependencies command. Precede the
commands with "call" which will execute that command as well as the following build command.

Also amend PATH to find xcopy.

* Update build.bat

Append PATH to find xcopy

* Update build.bat

Fix path to LICENSE file.

* Update build.bat

Co-authored-by: yusufm <56be0319ebba0e9fab2296e59e3f7f23a800a2a0@google.com>
Co-authored-by: godofredoc <e872c0fe6d3a96e44fd9c5bcb23acd904c065902@users.noreply.github.com>
Co-authored-by: keyonghan <9c9f2dc0f0565536ef2df369cf93b0fe751f3f67@users.noreply.github.com>
flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon,flutter/cocoon