Update draft release notes for 1.5.0.1

Signed-off-by: Junio C Hamano <junkio@cox.net>

Documentation/RelNotes-1.5.0.1.txt

@@ -7,14 +7,31 @@ Fixes since v1.5.0
 * Documentation updates
 
   - Clarifications and corrections to 1.5.0 release notes.
+
   - The main documentation did not link to git-remote documentation.
 
+  - Clarified introductory text of git-rebase documentation.
+
+  - Converted remaining mentions of update-index on Porcelain
+    documents to git-add/git-rm.
+
 * Bugfixes
 
   - git-daemon marks the listening sockets with FD_CLOEXEC so
     that it won't be leaked into the children.
 
+  - segfault from git-blame when the mandatory pathname
+    parameter was missing was fixed; usage() message is given
+    instead.
+
+* Tweaks
+
+  - sliding mmap() inefficiently mmaped the same region of a
+    packfile with an access pattern that used objects in the
+    reverse order.  This has been made more efficient.
+
 --
-O=v1.5.0-7-g37b73cf
+exec >/var/tmp/1
+O=v1.5.0-24-g460ca30
 echo O=`git describe maint`
-git shortlog --no-merges $O..
+git shortlog --no-merges $O..maint