misc.sh(): Don't log empty output

Signed-off-by: Zack Cerza <zack@redhat.com>

diff --git a/teuthology/misc.py b/teuthology/misc.py
index e48626a1cdb8ff684ce0a53c651eee1b79f5cdd2..e5b6a7d88edf1915779d6eb8d4a89862001a7403 100644 (file)
--- a/teuthology/misc.py
+++ b/teuthology/misc.py
@@ -1313,5 +1313,6 @@ def sh(command):
     except subprocess.CalledProcessError as e:
         log.exception(command + " error " + str(e.output))
         raise e
-    log.debug(command + " output " + str(output))
+    if output.strip():
+        log.debug(command + " output " + str(output))
     return output.decode('utf-8')