Tox: Use verbose tests

tox.ini

@@ -23,7 +23,7 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test-ci.txt
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install anyjson
-           nosetests --with-xunit                               \
+           nosetests -v --with-xunit                            \
                      --xunit-file={toxinidir}/nosetests.xml     \
                      --with-coverage3 --cover3-xml              \
                      --cover3-html-dir={toxinidir}/cover        \
@@ -36,7 +36,7 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test-ci.txt
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install anyjson
-           nosetests --with-xunit                               \
+           nosetests -v --with-xunit                            \
                      --xunit-file={toxinidir}/nosetests.xml     \
                      --with-coverage3 --cover3-xml              \
                      --cover3-html-dir={toxinidir}/cover        \
@@ -49,7 +49,7 @@ deps = -r{toxinidir}/requirements/default.txt
        -r{toxinidir}/requirements/test-ci.txt
 commands = {toxinidir}/extra/release/removepyc.sh {toxinidir}
            pip install anyjson
-           nosetests --with-xunit                               \
+           nosetests -v --with-xunit                            \
                      --xunit-file={toxinidir}/nosetests.xml     \
                      --with-coverage3 --cover3-xml              \
                      --cover3-html-dir={toxinidir}/cover        \