Handle robots.txt on logs.o.o

We don't want to delete the top-level robots.txt file - but everything
that is part of the logs hierarchy.

Change-Id: I369565a780eb749eab95e4bf8e7d8d7fd5bf0630

files/log_archive_maintenance.sh

@@ -1,8 +1,9 @@
 #!/bin/sh
 sleep $((RANDOM%600)) && \
 flock -n /var/run/gziplogs.lock \
-find -O3 /srv/static/logs/ -depth -not -name robots.txt -not -name lost+found \
-        -not -wholename /srv/static/logs/help/\* \( \
+find -O3 /srv/static/logs/ -depth -not -name lost+found \
+        -not -wholename /srv/static/logs/help/\* \
+        -not -wholename /srv/static/logs/robots.txt \( \
     \( -type f -mmin +10 -not -name \*\[.-\]gz -not -name \*\[._-\]\[zZ\] \
         \( -name \*.txt -or -name \*.html -or -name tmp\* \) \
         -exec gzip \{\} \; \) \