Reduce complexity of error messages in the common case where there is only one facility.

Title says it all.  Low impact change, testing not necessary.  Just look at the screen shots:
Note that when 2 or more facilities exist (rare), users will see the old error messages.

old:
![image](https://f.cloud.github.com/assets/4072455/1505969/a5c36ee6-48ff-11e3-8b92-8118d349fa46.png)

new:
![image](https://f.cloud.github.com/assets/4072455/1505968/92089aac-48ff-11e3-8498-bbc658456243.png)


old:
![image](https://f.cloud.github.com/assets/4072455/1505971/b3bc1c1e-48ff-11e3-8d55-49d99ada722c.png)

new:
![image](https://f.cloud.github.com/assets/4072455/1505972/ca2d9e1e-48ff-11e3-8317-488ac7c496bd.png)