[OE-core] [for-denzil 2/3] bitbake: command: Add missing import traceback

[Matthew McClintock]

From: Richard Purdie <richard.purdie at linuxfoundation.org>

Without this, if an exception occurs the server will silently crash
with no feedback to the user about why (since traceback isn't imported).

(Bitbake rev: e637a635bf7b5a9a2e9dc20afc18aceec98d578f)

Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 bitbake/lib/bb/command.py |    1 +
 1 file changed, 1 insertion(+)

diff --git a/bitbake/lib/bb/command.py b/bitbake/lib/bb/command.py
index 00b854e..c08e2ce 100644
--- a/bitbake/lib/bb/command.py
+++ b/bitbake/lib/bb/command.py
@@ -69,6 +69,7 @@ class Command:
             except CommandError as exc:
                 return None, exc.args[0]
             except Exception:
+                import traceback
                 return None, traceback.format_exc()
             else:
                 return result, None
-- 
1.7.9.7