[clang-tidy] Explained hack a bit.

bb00d588 · Lars Bilke · 6f1a9d4f · bb00d588
Commit bb00d588 authored 7 years ago by Lars Bilke
--- a/ThirdParty/.clang-tidy
+++ b/ThirdParty/.clang-tidy
 ---
-# Disable all checks, one check has to be enabled (hack)
+# Disable all checks, one check has to be enabled.
+# Hack: if there is no enabled check clang-tidy (at least in the way it is
+# invoked by CMake) prints out its own usage instructions. I have chosen an
+# arbitrary check here.
 Checks: '-*,boost-use-to-string'