Enforce sorting on the collect exclude directories

Updates "tox -e linters" to call "tox -e sorted"
so that zuul will enforce sorting of a particular file.

This adds a sort enforcement for the collect directories
The sort check runs: 'LC_ALL=c sort -c'

Note:  LC_ALL=c is required so that different environments
such as Ubuntu and Debian will validate using the same sort
ordering.

Story: 2010531
Task: 47379
Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: I739de1b43bf88ebef5da0890026827bd9599bc6f

tools/collector/debian-scripts/run.exclude

@@ -1,17 +1,17 @@
+/var/run/.vswitch
+/var/run/acpid.socket
+/var/run/avahi-daemon
+/var/run/containerd
+/var/run/dbus/system_bus_socket
+/var/run/libvirt/libvirt-sock
+/var/run/libvirt/libvirt-sock-ro
+/var/run/named-chroot
+/var/run/neutron/metadata_proxy
+/var/run/nvidia
+/var/run/ostree_repo
+/var/run/rpc_pipefs
+/var/run/rpcbind.sock
 /var/run/sanlock/sanlock.sock
+/var/run/systemd/inaccessible/blk
 /var/run/tgtd.ipc_abstract_namespace.0
 /var/run/wdmd/wdmd.sock
-/var/run/acpid.socket
-/var/run/rpcbind.sock
-/var/run/libvirt/libvirt-sock-ro
-/var/run/libvirt/libvirt-sock
-/var/run/dbus/system_bus_socket
-/var/run/named-chroot
-/var/run/avahi-daemon
-/var/run/neutron/metadata_proxy
-/var/run/.vswitch
-/var/run/containerd
-/var/run/nvidia
-/var/run/rpc_pipefs
-/var/run/systemd/inaccessible/blk
-/var/run/ostree_repo

tox.ini

@@ -10,7 +10,6 @@ sitepackages = False
 basepython = python3.9
 install_command = pip install \
     -v -v -v \
-    -U \
     -c{env:UPPER_CONSTRAINTS_FILE:https://opendev.org/starlingx/root/raw/branch/master/build-tools/requirements/debian/upper-constraints.txt} \
     {opts} {packages}
 setenv =
@@ -24,6 +23,7 @@ deps =
     -r{toxinidir}/test-requirements.txt
 allowlist_externals =
     bash
+    sort
 
 [testenv:bashate]
 # Treat all E* codes as Errors rather than warnings using: -e 'E*'
@@ -101,10 +101,17 @@ commands = pylint {posargs}                                          \
   utilities/platform-util/platform-util/platform_util                \
   --rcfile=./pylint.rc
 
+[testenv:sorted]
+# sort acts differently on Ubuntu and Debian
+# LC_ALL=c ensures they sort the same way
+setenv =
+    LC_ALL=c
+commands = sort -c tools/collector/debian-scripts/run.exclude
 
 [testenv:linters]
 commands =
     {[testenv:bashate]commands}
+    {[testenv:sorted]commands}
 
 [testenv:bandit]
 basepython = python3