Fix incorrect tox.ini config

Change-Id: Ic9e933e58503e5557841e353b490f1d2d476d3c1
(cherry picked from commit 839d336bbd)

tox.ini

@@ -21,14 +21,15 @@ commands = {posargs}
 # Run hacking/flake8 check for all python files
 [testenv:pep8]
 deps = flake8
- commands =
+whitelist_externals = bash
+commands =
     bash -c "grep -Irl \
         -e '!/usr/bin/env python' \
         -e '!/bin/python' \
         -e '!/usr/bin/python' \
         --exclude-dir '.*' \
         --exclude-dir '*.egg' \
-        --exclude-fir '*.egg-info' \
+        --exclude-dir '*.egg-info' \
         --exclude 'tox.ini' \
         --exclude '*.sh' \
         {toxinidir} | xargs flake8 --verbose"
@@ -52,6 +53,6 @@ commands =
         -e '!/bin/sh' \
         --exclude-dir '.*' \
         --exclude-dir '*.egg' \
-        --exclude-fir '*.egg-info' \
+        --exclude-dir '*.egg-info' \
         --exclude 'tox.ini' \
         {toxinidir} | xargs bashate --verbose --ignore=E003"