[lib/contents.php] Use variable name 'retVal' instead of 'retval' as variable names are case-sensitive (#2498)
[lib/contents.php] Use variable name 'retVal' instead of 'retval' as variable names are case-sensitive (#2498)


ORelio/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,kranack/rss-bridge,RSS-Bridge/rss-bridge,Riduidel/rss-bridge,RSS-Bridge/rss-bridge,kranack/rss-bridge,kranack/rss-bridge,ORelio/rss-bridge,Riduidel/rss-bridge,ORelio/rss-bridge,Riduidel/rss-bridge