Update tests/CMakeLists.txt

Author: tuhaihe

gpcontrib/diskquota/tests/CMakeLists.txt

@@ -63,9 +63,9 @@ endif()
 
 add_custom_target(install_test_extension
   COMMAND
-  cmake -E copy ${CMAKE_SOURCE_DIR}/control/test/diskquota_test.control ${PG_HOME}/share/postgresql/extension
+  cmake -E copy ${CMAKE_SOURCE_DIR}/control/test/diskquota_test.control ${CMAKE_INSTALL_PREFIX}/share/postgresql/extension
   COMMAND
-  cmake -E copy ${CMAKE_SOURCE_DIR}/control/test/diskquota_test--1.0.sql ${PG_HOME}/share/postgresql/extension
+  cmake -E copy ${CMAKE_SOURCE_DIR}/control/test/diskquota_test--1.0.sql ${CMAKE_INSTALL_PREFIX}/share/postgresql/extension
   )
 
 add_custom_target(installcheck)