message: Format .gitignore; add cquery_diagnostics.log
diff: +*.pyc
  +*.sln
  +*.swp
  +*.vcxproj
  +*.vcxproj.filters
  +*.vcxproj.user
  +*CACHE*
  .DS_Store
  +.lock-waf*
  .vs
  +.vscode/
  +.vscode/.ropeproject
  +.waf*
  Debug
  -x64
  build
  +cquery_diagnostics.log
  foo
  libcxx
  -*CACHE*
  waf-*
  -.lock-waf*
  -.waf*
  -*.pyc
  -*.swp
  -*.sln
  -.vscode/.ropeproject
  -*.vcxproj
  -*.vcxproj.user
  -*.vcxproj.filters
  -.vscode/
  +x64
  