In standalone package, default data subdirectory is "data", not "var"

Author: vaintroub

cmake/install_layout.cmake

@@ -106,7 +106,7 @@ ENDIF()
  SET(INSTALL_SQLBENCHROOTDIR_UNIX "")
  SET(INSTALL_DOCREADMEDIR_UNIX "share/mysql/doc/MySQL-server-${MYSQL_NO_DASH_VERSION}")
  SET(INSTALL_SUPPORTFILESDIR_UNIX "")
- SET(INSTALL_MYSQLDATADIR_STANDALONE "var")
+ SET(INSTALL_MYSQLDATADIR_UNIX "var")
 
 
 # Clear cached variables if install layout was changed