write_entry(): separate two helper functions out

diff --git a/RelNotes b/RelNotes
index 00e77229ddadcb8a13b10b693a96bd76a4cb9f33..5fcc4ef74770e8587a1469fff5e3f5610dabf0e1 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes-1.7.1.txt
\ No newline at end of file
+Documentation/RelNotes/1.7.6.txt
\ No newline at end of file