test: enable extra test summary by default

This reports the reason why tests are skipped (for example, if a certain
binary was not built).

Change-Id: I19095f43f69228116d71b52380814a61894754af
Reviewed-on: https://code.wireshark.org/review/31131
Petri-Dish: Peter Wu <peter@lekensteyn.nl>
Tested-by: Petri Dish Buildbot
Reviewed-by: Peter Wu <peter@lekensteyn.nl>

.travis.yml

@@ -71,6 +71,6 @@ before_script:
 script:
   - ninja
   - ninja test-programs
-  - pytest -nauto -ra -v ../test
+  - pytest -nauto -v ../test
 after_script:
   - if [ -f run/tshark ]; then run/tshark --version; fi

appveyor.yml

@@ -56,7 +56,7 @@ before_test:
 
 test_script:
   - set WS_BIN_PATH=%CD%\run\%CONFIGURATION%
-  - pytest -nauto -ra ..\test
+  - pytest -nauto ..\test
 
 on_finish:
   - ps: |

test/pytest.ini

@@ -1,2 +1,3 @@
 [pytest]
 python_files=suite_*.py group_*.py
+addopts = -ra