/usr/include/ is in liblog4shib-dev 1.0.9-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/log4shib/Export.hh
/usr/include/log4shib/
/usr/include/log4shib/AbortAppender.hh
/usr/include/log4shib/Appender.hh
/usr/include/log4shib/AppenderSkeleton.hh
/usr/include/log4shib/BasicConfigurator.hh
/usr/include/log4shib/BasicLayout.hh
/usr/include/log4shib/Category.hh
/usr/include/log4shib/CategoryStream.hh
/usr/include/log4shib/Configurator.hh
/usr/include/log4shib/FileAppender.hh
/usr/include/log4shib/Filter.hh
/usr/include/log4shib/FixedContextCategory.hh
/usr/include/log4shib/HierarchyMaintainer.hh
/usr/include/log4shib/IdsaAppender.hh
/usr/include/log4shib/Layout.hh
/usr/include/log4shib/LayoutAppender.hh
/usr/include/log4shib/LoggingEvent.hh
/usr/include/log4shib/NDC.hh
/usr/include/log4shib/NTEventLogAppender.hh
/usr/include/log4shib/OstreamAppender.hh
/usr/include/log4shib/PatternLayout.hh
/usr/include/log4shib/Portability.hh
/usr/include/log4shib/Priority.hh
/usr/include/log4shib/PropertyConfigurator.hh
/usr/include/log4shib/RemoteSyslogAppender.hh
/usr/include/log4shib/RollingFileAppender.hh
/usr/include/log4shib/SimpleConfigurator.hh
/usr/include/log4shib/SimpleLayout.hh
/usr/include/log4shib/StringQueueAppender.hh
/usr/include/log4shib/SyslogAppender.hh
/usr/include/log4shib/TimeStamp.hh
/usr/include/log4shib/Win32DebugAppender.hh
/usr/include/log4shib/config-openvms.h
/usr/include/log4shib/config-win32.h
/usr/include/log4shib/config.h
/usr/include/log4shib/threading/
/usr/include/log4shib/threading/BoostThreads.hh
/usr/include/log4shib/threading/DummyThreads.hh
/usr/include/log4shib/threading/MSThreads.hh
/usr/include/log4shib/threading/OmniThreads.hh
/usr/include/log4shib/threading/PThreads.hh
/usr/include/log4shib/threading/Threading.hh