Documentation: match undefline with the text in old release notes

gitster · gitster · commit 77d5f715c24f · 2015-10-22T10:16:17.000-07:00
These are not processed with AsciiDoc, but it is better to be
consistent.

Signed-off-by: Junio C Hamano &lt;gitster@pobox.com&gt;
diff --git a/Documentation/RelNotes/1.8.3.1.txt b/Documentation/RelNotes/1.8.3.1.txt
@@ -1,5 +1,5 @@
 Git v1.8.3.1 Release Notes
-========================
+==========================
 
 Fixes since v1.8.3
 ------------------
diff --git a/Documentation/RelNotes/1.8.4.1.txt b/Documentation/RelNotes/1.8.4.1.txt
@@ -1,5 +1,5 @@
 Git v1.8.4.1 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4
 ------------------
diff --git a/Documentation/RelNotes/1.8.4.2.txt b/Documentation/RelNotes/1.8.4.2.txt
@@ -1,5 +1,5 @@
 Git v1.8.4.2 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.1
 --------------------
diff --git a/Documentation/RelNotes/1.8.4.3.txt b/Documentation/RelNotes/1.8.4.3.txt
@@ -1,5 +1,5 @@
 Git v1.8.4.3 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.2
 --------------------
diff --git a/Documentation/RelNotes/1.8.4.4.txt b/Documentation/RelNotes/1.8.4.4.txt
@@ -1,5 +1,5 @@
 Git v1.8.4.4 Release Notes
-========================
+==========================
 
 Fixes since v1.8.4.3
 --------------------
