Make error messages even better!

Change-Id: I72bd1eb1d526dc59833e5bc3c636171f7f9545af
diff --git a/libc/bionic/__memcpy_chk.cpp b/libc/bionic/__memcpy_chk.cpp
index b95a0d7..2839795 100644
--- a/libc/bionic/__memcpy_chk.cpp
+++ b/libc/bionic/__memcpy_chk.cpp
@@ -46,7 +46,7 @@
               size_t copy_amount, size_t dest_len)
 {
     if (__predict_false(copy_amount > dest_len)) {
-        __fortify_chk_fail("memcpy buffer overflow prevented",
+        __fortify_chk_fail("memcpy prevented write past end of buffer",
                              BIONIC_EVENT_MEMCPY_BUFFER_OVERFLOW);
     }