LU-2873 tests: t-f generates numerous dots garbage

LU-2873 tests: t-f generates numerous dots garbage

Remove 'echo -n "."' from run_test t-f function when skipping test

Signed-off-by: Kyrylo Shatskyy <kyrylo_shatskyy@xyratex.com>
Reviewed-by: Roman Grigoryev <Roman_Grigoryev@xyratex.com>
Xyratex-bug-id: MRP-863
Change-Id: I2c6de9fff3676aee7a506a2c2f6b6f9fe7a3b472
Reviewed-on: http://review.whamcloud.com/5540
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Jian Yu <jian.yu@intel.com>
Reviewed-by: Minh Diep <minh.diep@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>