close the dupped terminal fd on release_terminal
close the dupped terminal fd on release_terminal

Ignore-this: 17f737f325c59e43f6fc24c9f629fb65

darcs-hash:20100814002535-f0a0d-60758a32424ca7fe1f2ebbf76af2ba962de8533e.gz

jtdaugherty/vty,jtdaugherty/vty,jtdaugherty/vty