Fix a config issue

tox.ini

@@ -7,8 +7,8 @@ deps =
     pytest-mock
 whitelist_externals = mkdir
 commands =
-    mkdir -p {toxinidir}/tests/testdata/outputs_current/ \
-    mkdir -p {toxinidir}/tests/testdata/outputs_current_laser_result/ \
+    mkdir -p {toxinidir}/tests/testdata/outputs_current/
+    mkdir -p {toxinidir}/tests/testdata/outputs_current_laser_result/
     py.test -v \
         --junitxml={toxworkdir}/output/{envname}/junit.xml \
         {posargs}
@@ -23,8 +23,8 @@ deps =
     pytest-cov
 whitelist_externals = mkdir
 commands =
-    mkdir -p {toxinidir}/tests/testdata/outputs_current/ \
-    mkdir -p {toxinidir}/tests/testdata/outputs_current_laser_result/ \
+    mkdir -p {toxinidir}/tests/testdata/outputs_current/
+    mkdir -p {toxinidir}/tests/testdata/outputs_current_laser_result/
     py.test -v \
         --cov=mythril \
         --cov-config=tox.ini \