hgweb: fix diffstat links in paper/changeset.tmpl

hgweb: fix diffstat links in paper/changeset.tmpl

'<a .../>foo</a>' syntax is incorrect, since the first tag just "tries" to
close itself and then the actual content follows. It doesn't work, either
because web browsers know better than this or because there should be a
whitespace before /: '<a />'. So for the hgweb users the links looked
normal anyway, but now they are correct in code as well.

--- a/mercurial/templates/paper/changeset.tmpl	Sat Jan 10 17:54:24 2015 +0800
+++ b/mercurial/templates/paper/changeset.tmpl	Sat Jan 10 18:00:57 2015 +0800
@@ -65,9 +65,9 @@
   <th class="diffstat">diffstat</th>
   <td class="diffstat">
     {diffsummary}
-    <a id="diffstatexpand" href="javascript:toggleDiffstat()"/>[<tt>+</tt>]</a>
+    <a id="diffstatexpand" href="javascript:toggleDiffstat()">[<tt>+</tt>]</a>
     <div id="diffstatdetails" style="display:none;">
-      <a href="javascript:toggleDiffstat()"/>[<tt>-</tt>]</a>
+      <a href="javascript:toggleDiffstat()">[<tt>-</tt>]</a>
       <p></p>
       <table class="stripes2">{diffstat}</table>
     </div>

--- a/tests/test-hgweb-commands.t	Sat Jan 10 17:54:24 2015 +0800
+++ b/tests/test-hgweb-commands.t	Sat Jan 10 18:00:57 2015 +0800
@@ -891,9 +891,9 @@
     <td class="diffstat">
        2 files changed, 2 insertions(+), 0 deletions(-)
   
-      <a id="diffstatexpand" href="javascript:toggleDiffstat()"/>[<tt>+</tt>]</a>
+      <a id="diffstatexpand" href="javascript:toggleDiffstat()">[<tt>+</tt>]</a>
       <div id="diffstatdetails" style="display:none;">
-        <a href="javascript:toggleDiffstat()"/>[<tt>-</tt>]</a>
+        <a href="javascript:toggleDiffstat()">[<tt>-</tt>]</a>
         <p></p>
         <table class="stripes2">  <tr>
       <td class="diffstat-file"><a href="#l1.1">da/foo</a></td>

--- a/tests/test-hgweb-diffs.t	Sat Jan 10 17:54:24 2015 +0800
+++ b/tests/test-hgweb-diffs.t	Sat Jan 10 18:00:57 2015 +0800
@@ -115,9 +115,9 @@
     <td class="diffstat">
        2 files changed, 2 insertions(+), 0 deletions(-)
   
-      <a id="diffstatexpand" href="javascript:toggleDiffstat()"/>[<tt>+</tt>]</a>
+      <a id="diffstatexpand" href="javascript:toggleDiffstat()">[<tt>+</tt>]</a>
       <div id="diffstatdetails" style="display:none;">
-        <a href="javascript:toggleDiffstat()"/>[<tt>-</tt>]</a>
+        <a href="javascript:toggleDiffstat()">[<tt>-</tt>]</a>
         <p></p>
         <table class="stripes2">  <tr>
       <td class="diffstat-file"><a href="#l1.1">a</a></td>
@@ -387,9 +387,9 @@
     <td class="diffstat">
        2 files changed, 2 insertions(+), 0 deletions(-)
   
-      <a id="diffstatexpand" href="javascript:toggleDiffstat()"/>[<tt>+</tt>]</a>
+      <a id="diffstatexpand" href="javascript:toggleDiffstat()">[<tt>+</tt>]</a>
       <div id="diffstatdetails" style="display:none;">
-        <a href="javascript:toggleDiffstat()"/>[<tt>-</tt>]</a>
+        <a href="javascript:toggleDiffstat()">[<tt>-</tt>]</a>
         <p></p>
         <table class="stripes2">  <tr>
       <td class="diffstat-file"><a href="#l1.1">a</a></td>

--- a/tests/test-hgweb-removed.t	Sat Jan 10 17:54:24 2015 +0800
+++ b/tests/test-hgweb-removed.t	Sat Jan 10 18:00:57 2015 +0800
@@ -96,9 +96,9 @@
     <td class="diffstat">
        1 files changed, 0 insertions(+), 1 deletions(-)
   
-      <a id="diffstatexpand" href="javascript:toggleDiffstat()"/>[<tt>+</tt>]</a>
+      <a id="diffstatexpand" href="javascript:toggleDiffstat()">[<tt>+</tt>]</a>
       <div id="diffstatdetails" style="display:none;">
-        <a href="javascript:toggleDiffstat()"/>[<tt>-</tt>]</a>
+        <a href="javascript:toggleDiffstat()">[<tt>-</tt>]</a>
         <p></p>
         <table class="stripes2">  <tr>
       <td class="diffstat-file"><a href="#l1.1">a</a></td>