Fix name[casing] ansible-lint issues

fix 1900 failures of the following case issue:

`name[casing]: All names should start with an uppercase letter.`

Signed-off-by: Ryan Lerch <rlerch@redhat.com>

roles/nagios_server/handlers/main.yml

@@ -1,3 +1,3 @@
 ---
-- name: restart nrpe
+- name: Restart nrpe
   service: name=nrpe state=restarted

roles/nagios_server/tasks/main.yml

@@ -62,7 +62,7 @@
     - mod_ssl
   when: env == "production" and nagios_location == "external"
 
-- name: set sebooleans so nagios can talk to the certgetter01 for ssl certs
+- name: Set sebooleans so nagios can talk to the certgetter01 for ssl certs
   seboolean: name=httpd_can_network_connect
              state=true
              persistent=true
@@ -551,7 +551,7 @@
   - nagios_server
 
 # enable and run the nagios service
-- name: enable and run the nagios service
+- name: Enable and run the nagios service
   service: name=nagios.service state=started enabled=yes
   check_mode: no
   failed_when: false