Plugin autogen list: put plugin names in the plugin names column

Change-Id: I1f2c66fa1bf8fd73ee6693d4919e33e3f14487c5
diff --git a/tools/generate-devstack-plugins-list.sh b/tools/generate-devstack-plugins-list.sh
index 82486f5..c3c8f24 100644
--- a/tools/generate-devstack-plugins-list.sh
+++ b/tools/generate-devstack-plugins-list.sh
@@ -75,7 +75,7 @@
 for plugin in ${sorted_plugins}; do
     giturl="git://git.openstack.org/openstack/${plugin}"
     gitlink="https://git.openstack.org/cgit/openstack/${plugin}"
-    printf "%-${name_col_len}s %s\n" "${p}" "\`${giturl} <${gitlink}>\`__"
+    printf "%-${name_col_len}s %s\n" "${plugin}" "\`${giturl} <${gitlink}>\`__"
 done
 
 if [[ -r data/devstack-plugins-registry.footer ]]; then