forked from PsychoticNinja/irssi
Fix typo in help text for /ISON command (cherry picked from commit 6d42c4f949ab7d3d403d2f31d6a816961a180e2b)
Fix typo in help text for /ISON command (cherry picked from commit 6d42c4f949ab7d3d403d2f31d6a816961a180e2b)