tools: fix frr-reload interface desc cmd

tools: fix frr-reload interface desc cmd

Fix frr-reload script to only render 'no description'
rather than 'no description blah'

Ticket:#3628756
Testing Done:

Before:
2023-11-29 02:38:55,758  INFO: Failed to execute interface hostbond_1
no description hostbond_1_to_host exit
2023-11-29 02:38:55,758 ERROR: "interface hostbond_1 --  no description
hostbond_1_to_host -- exit" we failed to remove this command
2023-11-29 02:38:55,758 ERROR: % Unknown command:  no description
hostbond_1_to_host

Signed-off-by: Chirag Shah <chirag@nvidia.com>