apply: free patch->{def,old,new}_name fields

diff --git a/RelNotes b/RelNotes
index 7b9bde663bd5b2b8eec6b7e91c1de275f6afa460..dfc0e738d9198a8b9a85ed3c8b1f621f71b32f25 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes-1.7.0.txt
\ No newline at end of file
+Documentation/RelNotes/1.7.8.5.txt
\ No newline at end of file