Fix 'olso' typo in lib/oslo

This enables commit If92073be5a431840701c952a194e63a7c452c9ca
for cleaning up potentially installed older oslo.config. Here are
its original details.

If the user had oslo.config installed prior to us setting up the
oslo.config out of git they can get themselves into this very funny
situation where pip doesn't see oslo.config 1.1.x, however some
packages might. This manifests itself as a user error trying to
start nova-api which uses DeprecatedOption, not in oslo.config 1.1.x

Because of the funny state pip is in, you can't uninstall oslo.config.

So in these situations, if we see old oslo.config in the filesystem,
pip install / uninstall it to ensure that everyone ends up using the
git version instead.

To reduce the amount of user confusion, do this on every
install_oslo for a while, which we can purge after Havana ships.

Change-Id: I7fa0b70497bf5622f4638da284afe5363a004d3c
Fixes: bug #1213089
diff --git a/lib/oslo b/lib/oslo
index 449c4de..f77a4fa 100644
--- a/lib/oslo
+++ b/lib/oslo
@@ -40,12 +40,12 @@
 
 # cleanup_oslo() - purge possibly old versions of oslo
 function cleanup_oslo() {
-    # this means we've got an old olso installed, lets get rid of it
+    # this means we've got an old oslo installed, lets get rid of it
     if ! python -c 'import oslo.config' 2>/dev/null; then
         echo "Found old oslo.config... removing to ensure consistency"
         local PIP_CMD=$(get_pip_command)
-        pip_install olso.config
-        sudo $PIP_CMD uninstall -y olso.config
+        pip_install oslo.config
+        sudo $PIP_CMD uninstall -y oslo.config
     fi
 }