fix: work around variations in type/distro specific sed versions handling of '-i'
fix: work around variations in type/distro specific sed versions handling of '-i'

maier/circonus-one-step-install,circonus-labs/circonus-one-step-install,maier/circonus-one-step-install,maier/circonus-one-step-install,circonus-labs/circonus-one-step-install,circonus-labs/circonus-one-step-install