Add rscripts variable for crontab.

They get to run with whatever user is specified in crontab.tpl.

scripts/crontab/crontab.tpl

@@ -37,7 +37,7 @@ HOME = /tmp
 0 0 * * * {{ cron }} rebuild_kb
 0 22 * * * {{ cron }} get_customercare_stats
 42 22 * * * {{ django }} cleanup
-30 3 * * * root {{ scripts }} scripts/l10n_completion.py --truncate 30 locale media/l10n_history.json media/l10n_summary.json
+30 3 * * * root {{ rscripts }} scripts/l10n_completion.py --truncate 30 locale media/l10n_history.json media/l10n_summary.json
 
 # Once per week.
 21 03 * * 3 {{ django }} purge_hashes

scripts/crontab/gen-crons.py

@@ -33,9 +33,13 @@ def main():
             opts.kitsune, python_path, opts.python),
     }
     ctx['cron'] = '%s cron' % ctx['django']
+    ctx['rscripts'] = ctx['scripts']
 
     if opts.user:
         for k, v in ctx.iteritems():
+            if k == 'rscripts':
+                # rscripts get to run as whatever user is specified in crontab.tpl
+                continue
             ctx[k] = '%s %s' % (opts.user, v)
 
     # Needs to stay below the opts.user injection.