config: avoid "write_in_full(fd, buf, len) < len" pattern

diff --git a/RelNotes b/RelNotes
index 39dc075ee01342db1cd11c47f6de0395df605976..29ef98331028ae5b1cdc10be75626e48b173a961 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/1.7.3.5.txt
\ No newline at end of file
+Documentation/RelNotes/2.14.2.txt
\ No newline at end of file