connector/cpp has a dot in install path

Install the project...

-- Install configuration: "RelWithDebInfo"

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb.so.3

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb/plugin/mysql_clear_password.so

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb/plugin/dialog.so

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb/plugin/client_ed25519.so

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb/plugin/sha256_password.so

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/libmariadb/plugin/caching_sha2_password.so

-- Installing: /tmp/usr/./lib/x86_64-linux-gnu/mariadb/libmariadbcpp.so

-- Set runtime path of "/tmp/usr/./lib/x86_64-linux-gnu/mariadb/libmariadbcpp.so" to ""

-- Installing: /tmp/usr/share/doc/mariadb_connector_cpp/README

-- Installing: /tmp/usr/share/doc/mariadb_connector_cpp/COPYING

-- Installing: /tmp/usr/./include/mariadb/conncpp.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Driver.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/DriverManager.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Connection.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Statement.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/PreparedStatement.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/ResultSet.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/DatabaseMetaData.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/ResultSetMetaData.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/CallableStatement.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Exception.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/SQLString.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Warning.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/ParameterMetaData.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Savepoint.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/Types.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/jdbccompat.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/buildconf.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/CArray.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/compat/Array.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/compat/Executor.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/compat/Object.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/compat/SQLType.hpp

-- Installing: /tmp/usr/./include/mariadb/conncpp/compat/Struct.hpp