[Example] change log format
authorjy1210.jung <jy1210.jung@samsung.com>
Wed, 25 Jul 2018 11:55:55 +0000 (20:55 +0900)
committer함명주/동작제어Lab(SR)/Principal Engineer/삼성전자 <myungjoo.ham@samsung.com>
Thu, 26 Jul 2018 01:15:29 +0000 (10:15 +0900)
commit0aa159b66a1059cb391a25880d7459964cfe391e
tree8fb781816426a9f241f2992e4380d1620056ac79
parente622b6683a6c4917080b8e7ec914f52e6dda4da3
[Example] change log format

f-string supported from python3.6, so simply changed log format.

**Self evaluation:**
1. Build test: [*]Passed [ ]Failed [ ]Skipped
2. Run test: [ ]Passed [ ]Failed [*]Skipped

Signed-off-by: Jaeyun Jung <jy1210.jung@samsung.com>
nnstreamer_example/example_filter/nnstreamer_example_filter.c
nnstreamer_example/example_filter/nnstreamer_example_filter.py