Do not show shell guess ofr directory queries

bootstrap/coriolisEnv.py

@@ -170,6 +170,7 @@ def guessShell ( defaultShell, osType ):
                 shellPath    = whichCommand.stdout.splitlines()[0].decode('utf8')
             else:
                 shellPath = shell
+            if not options.queryISysRoot and not options.queryInstRoot:
                 print( 'echo "[GUESSED] shellPath={}";'.format(shellPath) )
         except Exception:
             shellPath = u'/bin/bash'