69a439b8807cb150068d196a0e2fd57fd80057df doc: add missing copyright header to getuniquepath.cpp (fanquake)
Pull request description:
This was missed in #21052.
ACKs for top commit:
hebasto:
ACK 69a439b8807cb150068d196a0e2fd57fd80057df, but a scripted-diff using `copyright_header.py insert` looks preferable.
Tree-SHA512: 1a75ffd93fa8e5e83821e1fe984353422740ebf9e203dc873debf4dffec0e23f55a1e31f806dd2d66087d3620f6dc447af69f9124f0bcc6676ef91ee35374832