After first puppet execution
augtool> print /files/etc/services/service-name[.="kerberos"]
/files/etc/services/service-name[171] = "kerberos"
/files/etc/services/service-name[171]/port = "88"
/files/etc/services/service-name[171]/protocol = "tcp"
/files/etc/services/service-name[171]/alias[1] = "kerberos5"
/files/etc/services/service-name[171]/alias[2] = "krb5"
/files/etc/services/service-name[171]/alias[3] = "kerberos-sec"
/files/etc/services/service-name[171]/#comment = "Kerberos v5"
/files/etc/services/service-name[172] = "kerberos"
/files/etc/services/service-name[172]/port = "88"
/files/etc/services/service-name[172]/protocol = "udp"
/files/etc/services/service-name[172]/alias[1] = "kerberos5"
/files/etc/services/service-name[172]/alias[2] = "krb5"
/files/etc/services/service-name[172]/alias[3] = "kerberos-sec"
/files/etc/services/service-name[172]/#comment = "Kerberos v5"
After second puppet execution
augtool> print /files/etc/services/service-name[.="kerberos"]
/files/etc/services/service-name[171] = "kerberos"
/files/etc/services/service-name[171]/port = "88"
/files/etc/services/service-name[171]/protocol = "tcp"
/files/etc/services/service-name[171]/alias[1] = "kerberos5"
/files/etc/services/service-name[171]/alias[2] = "krb5"
/files/etc/services/service-name[171]/alias[3] = "kerberos-sec"
/files/etc/services/service-name[171]/alias[4] = "kerberos-sec"
/files/etc/services/service-name[171]/#comment = "Kerberos v5"
/files/etc/services/service-name[172] = "kerberos"
/files/etc/services/service-name[172]/port = "88"
/files/etc/services/service-name[172]/protocol = "udp"
/files/etc/services/service-name[172]/alias[1] = "kerberos5"
/files/etc/services/service-name[172]/alias[2] = "krb5"
/files/etc/services/service-name[172]/alias[3] = "kerberos-sec"
/files/etc/services/service-name[172]/alias[4] = "kerberos-sec"
/files/etc/services/service-name[172]/#comment = "Kerberos v5"