Fix output width of freemem.

templates/freemem.epp

@@ -16,9 +16,9 @@ with open("/proc/meminfo") as f:
             usedGB, totalGB))
 
     part = used / total
-    width = 80
-    filled = int(80 * part)
-    empty = 80 - filled
+    width = 80 - 7
+    filled = int(width * part)
+    empty = width - filled
     print ( "[{}{}] {:3}%".format(
         filled * "#",
         empty * " ",