fix SRPM builds on SLES 12.5, cmake 3.5.2

the bug with %attr(700,%{mysqld_user},-)
was fixed not right after 2.8.12, but only in 3.10.0

https://gitlab.kitware.com/cmake/cmake/-/commit/a351edd245

plugin/auth_pam/CMakeLists.txt

@@ -42,8 +42,8 @@ IF(HAVE_PAM_APPL_H AND HAVE_GETGROUPLIST)
   IF (TARGET auth_pam)
     MYSQL_ADD_EXECUTABLE(auth_pam_tool auth_pam_tool.c DESTINATION ${INSTALL_PLUGINDIR}/auth_pam_tool_dir COMPONENT Server)
     TARGET_LINK_LIBRARIES(auth_pam_tool pam)
-    IF (CMAKE_MAJOR_VERSION EQUAL 2)
-      # 2.8.12 bug (in CentOS 7)
+    IF (CMAKE_VERSION VERSION_LESS 3.10.0)
+      # cmake bug #14362
       SET(user mysql)
     ELSE()
       SET(user "%{mysqld_user}")