libganglia: port include logic to APR to avoid use of sprintf
libganglia: port include logic to APR to avoid use of sprintf

logic added by r749 and cleaned up in r813, independent heap management
unneeded since r1171 when an APR pool was introduced but newpath was
never migrated


git-svn-id: 27e0aca8c7a52a9ae65dfba2e16879604119af8c@1826 93a4e39c-3214-0410-bb16-828d8e3bcd0f

fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia,fastly/ganglia