ci: Travis: cover verbose=1

.travis.yml

@@ -23,10 +23,13 @@ install:
 jobs:
   include:
     # OSX tests - first (in test stage), since they are the slower ones.
+    # Coverage for:
+    # - osx
+    # - verbose=1
     - os: osx
       osx_image: xcode10.1
       language: generic
-      env: TOXENV=py37-xdist PYTEST_COVERAGE=1
+      env: TOXENV=py37-xdist PYTEST_COVERAGE=1 PYTEST_ADDOPTS=-v
       before_install:
         - which python3
         - python3 -V
@@ -52,7 +55,7 @@ jobs:
     # - TestArgComplete (linux only)
     # - numpy
     # - old attrs
-    # Empty PYTEST_ADDOPTS to run this non-verbose.
+    # - verbose=0
     - env: TOXENV=py37-lsof-oldattrs-numpy-twisted-xdist PYTEST_COVERAGE=1 PYTEST_ADDOPTS=
 
     # Specialized factors for py37.