Suppress some bashate warnings

When running ``tox`` for manila image elements bashate warnings
are emitted for lines that are too long.  Suppress these since
we have no intention of enforcing that requirement.  Also add a
shebang to the top of a shell script, which does no harm (even
though it is not needed when sourcing the script to set env files)
in order to make another warning go away.

TrivialFix

Change-Id: I7f2f2723f99d64a0e28b4d0fe43b79e7201f6121

elements/manila-ssh/environment.d/50-manila-user

@@ -1,3 +1,4 @@
+#!/bin/bash
 export DIB_MANILA_USER_USERNAME=${DIB_MANILA_USER_USERNAME:-manila}
 export DIB_MANILA_USER_AUTHORIZED_KEYS=${DIB_MANILA_USER_AUTHORIZED_KEYS:-}
 export DIB_MANILA_USER_PASSWORD=${DIB_MANILA_USER_PASSWORD:-}

tools/run_bashate.sh

@@ -4,4 +4,4 @@ find ./ -not -wholename \*.tox/\* -and \
     \( -name \*.sh -or -wholename \*.d/\* -and \
     -not -name \*.md -and -not -name \*.rst -and \
     -not -name \*.py  -and -not -name \*.conf \) \
-    -print0 | xargs -0 bashate -v
+    -print0 | xargs -0 bashate -v -i E006