make function names more uniform



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@3406 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/memcheck/mac_needs.c b/memcheck/mac_needs.c
index d005388..8612a72 100644
--- a/memcheck/mac_needs.c
+++ b/memcheck/mac_needs.c
@@ -441,10 +441,7 @@
    MAC_Error err_extra;
    Bool      just_below_esp;
 
-   just_below_esp = is_just_below_ESP( 
-                       VG_(get_stack_pointer)(tid),
-                       a 
-                    );
+   just_below_esp = is_just_below_ESP( VG_(get_SP)(tid), a );
 
    /* If this is caused by an access immediately below %ESP, and the
       user asks nicely, we just ignore it. */