Update checkstyle to match new copyright header
<property name="lineSeparator" value="lf"/>
</module>
<module name="RegexpHeader">
- <property name="header" value="^/\*$\n^ \* Copyright \d{4} Palantir Technologies, Inc\. All rights reserved\.$"/>
+ <property name="header" value="^/\*$\n^ \* \(C\) Copyright \d{4} Palantir Technologies Inc\. All rights reserved\.$"/>
<property name="fileExtensions" value=".java,.ts"/>
</module>
<module name="RegexpMultiline"> <!-- Development Practices: Writing good unit tests -->
