[#858] fix warnings from -O3 build
[#858] fix warnings from -O3 build

janiheikkinen/irods,leesab/irods,janiheikkinen/irods,PaulVanSchayck/irods,leesab/irods,leesab/irods,PaulVanSchayck/irods,janiheikkinen/irods,janiheikkinen/irods,janiheikkinen/irods,PaulVanSchayck/irods,leesab/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,leesab/irods,leesab/irods,PaulVanSchayck/irods,PaulVanSchayck/irods,janiheikkinen/irods,PaulVanSchayck/irods,janiheikkinen/irods,leesab/irods,janiheikkinen/irods,PaulVanSchayck/irods,janiheikkinen/irods