test/py: fix anchors in HTML status report

The current code wraps a pre tag inside an a tag. For some reason, this
causes at least Firefox to attempt to drag the pre section content when
using a mouse drag to select text. Re-order the tags so that the text can
be selected using the mouse, at least if you start the drag outside the
text (after the end of the line, for example).
Signed-off-by: NStephen Warren <swarren@nvidia.com>

test/py/multiplexed_log.py

@@ -365,13 +365,13 @@ $(document).ready(function () {
 
         self._terminate_stream()
         self.f.write('<div class="' + note_type + '">\n')
-        if anchor:
-            self.f.write('<a href="#%s">\n' % anchor)
         self.f.write('<pre>')
+        if anchor:
+            self.f.write('<a href="#%s">' % anchor)
         self.f.write(self._escape(msg))
-        self.f.write('\n</pre>\n')
         if anchor:
-            self.f.write('</a>\n')
+            self.f.write('</a>')
+        self.f.write('\n</pre>\n')
         self.f.write('</div>\n')
 
     def start_section(self, marker, anchor=None):