Adding the line in question makes no difference. The way you see if it worked is you run restorecon and see if it reports doing anything, if everything is OK restorecon will do nothing. Below is an example.
# restorecon -v /run/utmp restorecon reset /run/utmp context system_u:object_r:var_run_t:s0- >system_u:object_r:initrc_var_run_t:s0 Would you like sysadm_r access on one of my test systems to try this out? -- My Main Blog http://etbe.coker.com.au/ My Documents Blog http://doc.coker.com.au/