message: Enable latex3 syntax in doctex mode
diff: </dict>
  <dict>
  <key>include</key>
  - <string>text.tex</string>
  + <string>text.tex.latex.expl3</string>
  </dict>
  </array>
  </dict>
  </dict>
  <dict>
  <key>include</key>
  - <string>text.tex.latex</string>
  + <string>text.tex.latex.expl3</string>
  </dict>
  </array>
  <key>repository</key>
  