Fix extraneous spaces around hash in daily report spark plot

Small and insignificant change to make chrome do something sensible with
the hover text box since it was apparently treating the leading and
trailing spaces as significant.

Change-Id: Id1c5949db9115e7917e3ec436a9027d85d4e04f5

Author: georges-arm

lnt/server/ui/templates/reportutils.html

@@ -59,9 +59,7 @@
   {%- endif -%}
     <rect x="{{(nr_days-day_nr-0.5) * x_day_spacing + x_border_size}}" y="0"
           width="{{x_day_spacing}}" height="{{full_height}}" style="{{style}}">
-      <title>
-        Hash: {{dr.cr.cur_hash}}
-      </title>
+      <title>Hash: {{dr.cr.cur_hash}}</title>
     </rect>
 {%- endmacro -%}
     <span>