Resolve "enh(build): an endless loop occurs in sheldon"

Description

An endless loop occurs when applying sheldon on a project without any license file.

Results

No more endless loop.

How to test it?

Launch sheldon on communication_layer using sheldon.bat --input .\socket.hpp from directory 'XXXXXXRobotics\communication_layer\src'

Data

Related issue(s)

Closes #77