Fix typo in configure summary.

Part of:

https://github.com/uniconproject/unicon/commit/1c0d0de6c1f79c6d444b531959b6d9e4edc66d2a
--- configure.ac
+++ configure.ac
@@ -929,8 +929,8 @@ if test "x$database" = "xyes" || test "x$database" = "xon" ; then
   fi
   fi
 else
-#disbaled databse
-  dtmp=" ! Databse"
+#disabled database
+  dtmp=" ! Database"
 fi
 
 # want ssl
