pkg-rquery.8: Add note about updating behavior from pkg-install.8
pkg-rquery.8: Add note about updating behavior from pkg-install.8

khorben/pkg,khorben/pkg,skoef/pkg,en90/pkg,khorben/pkg,junovitch/pkg,junovitch/pkg,Open343/pkg,Open343/pkg,en90/pkg,skoef/pkg