Add some tests for ENV.{append,prepend} behavior
Only perform coercion to string once in ENV.{append,prepend}
sbt 0.13.0

Closes #22128.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
hbase 0.94.11

Closes #22129.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
MongoDB 2.5.2

Closes #22122.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Global 6.2.9

Closes #22120.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Jetty 9.0.5

Closes #22123.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Prefer interpolation to concatenation