message: Fix highlighting $...$ and $$...$$ spanning several lines
diff: <key>name</key>
  <string>comment.line.percentage.tex</string>
  </dict>
  + <dict>
  + <key>begin</key>
  + <string>\$\$</string>
  + <key>beginCaptures</key>
  + <dict>
  + <key>0</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.string.begin.latex</string>
  + </dict>
  + </dict>
  + <key>end</key>
  + <string>\$\$</string>
  + <key>endCaptures</key>
  + <dict>
  + <key>0</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.string.end.latex</string>
  + </dict>
  + </dict>
  + <key>name</key>
  + <string>string.other.math.latex</string>
  + <key>patterns</key>
  + <array>
  + <dict>
  + <key>include</key>
  + <string>$base</string>
  + </dict>
  + </array>
  + </dict>
  + <dict>
  + <key>begin</key>
  + <string>\$</string>
  + <key>beginCaptures</key>
  + <dict>
  + <key>0</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.string.begin.latex</string>
  + </dict>
  + </dict>
  + <key>end</key>
  + <string>\$</string>
  + <key>endCaptures</key>
  + <dict>
  + <key>0</key>
  + <dict>
  + <key>name</key>
  + <string>punctuation.definition.string.end.latex</string>
  + </dict>
  + </dict>
  + <key>name</key>
  + <string>string.other.math.latex</string>
  + <key>patterns</key>
  + <array>
  + <dict>
  + <key>include</key>
  + <string>$base</string>
  + </dict>
  + </array>
  + </dict>
  <dict>
  <key>include</key>
  <string>text.tex.latex</string>
  