K 10
svn:author
V 8
vangyzen
K 8
svn:date
V 27
2018-11-27T19:45:24.548118Z
K 7
svn:log
V 255
MFC r340345

Fix daily mailq script for Postfix and daily_show_success="NO"

Exit with a zero status when Postfix reports "Mail queue is empty" so this
section won't appear in the report at all when daily_show_success="NO".

Sponsored by:	Dell EMC Isilon

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