/usr/ is in libcurl-openssl1.0-dev 7.58.0-2ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libcurl.a
/usr/lib/x86_64-linux-gnu/libcurl.la
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/bin/
/usr/bin/curl-config
/usr/include/
/usr/include/x86_64-linux-gnu/
/usr/include/x86_64-linux-gnu/curl/
/usr/include/x86_64-linux-gnu/curl/curl.h
/usr/include/x86_64-linux-gnu/curl/curlver.h
/usr/include/x86_64-linux-gnu/curl/easy.h
/usr/include/x86_64-linux-gnu/curl/mprintf.h
/usr/include/x86_64-linux-gnu/curl/multi.h
/usr/include/x86_64-linux-gnu/curl/stdcheaders.h
/usr/include/x86_64-linux-gnu/curl/system.h
/usr/include/x86_64-linux-gnu/curl/typecheck-gcc.h
/usr/lib/x86_64-linux-gnu/pkgconfig/libcurl.pc
/usr/share/
/usr/share/aclocal/
/usr/share/aclocal/libcurl.m4
/usr/share/doc/
/usr/share/doc/libcurl-openssl1.0-dev/
/usr/share/doc/libcurl-openssl1.0-dev/copyright
/usr/share/man/
/usr/share/man/man1/
/usr/share/man/man1/curl-config.1.gz
/usr/lib/x86_64-linux-gnu/libcurl.so
/usr/share/doc/libcurl-openssl1.0-dev/NEWS.Debian.gz
/usr/share/doc/libcurl-openssl1.0-dev/changelog.Debian.gz