Comment # 13 on bug 1117086 from bob wheater

Its still not cleaning up -- kernels now greater than 4 as show below:
localhost:~ # ls /boot
.vmlinuz-4.12.14-lp150.11-default.hmac    
symtypes-4.12.14-lp150.12.25-default.gz
.vmlinuz-4.12.14-lp150.12.19-default.hmac 
symtypes-4.12.14-lp150.12.28-default.gz
.vmlinuz-4.12.14-lp150.12.22-default.hmac 
symtypes-4.12.14-lp150.12.45-default.gz
.vmlinuz-4.12.14-lp150.12.25-default.hmac 
symtypes-4.12.14-lp150.12.48-default.gz
.vmlinuz-4.12.14-lp150.12.28-default.hmac  symvers-4.12.14-lp150.11-default.gz
.vmlinuz-4.12.14-lp150.12.45-default.hmac 
symvers-4.12.14-lp150.12.19-default.gz
.vmlinuz-4.12.14-lp150.12.48-default.hmac 
symvers-4.12.14-lp150.12.22-default.gz
System.map-4.12.14-lp150.11-default       
symvers-4.12.14-lp150.12.25-default.gz
System.map-4.12.14-lp150.12.19-default    
symvers-4.12.14-lp150.12.28-default.gz
System.map-4.12.14-lp150.12.22-default    
symvers-4.12.14-lp150.12.45-default.gz
System.map-4.12.14-lp150.12.25-default    
symvers-4.12.14-lp150.12.48-default.gz
System.map-4.12.14-lp150.12.28-default     sysctl.conf-4.12.14-lp150.11-default
System.map-4.12.14-lp150.12.45-default    
sysctl.conf-4.12.14-lp150.12.19-default
System.map-4.12.14-lp150.12.48-default    
sysctl.conf-4.12.14-lp150.12.22-default
boot.readme                               
sysctl.conf-4.12.14-lp150.12.25-default
config-4.12.14-lp150.11-default           
sysctl.conf-4.12.14-lp150.12.28-default
config-4.12.14-lp150.12.19-default        
sysctl.conf-4.12.14-lp150.12.45-default
config-4.12.14-lp150.12.22-default        
sysctl.conf-4.12.14-lp150.12.48-default
config-4.12.14-lp150.12.25-default         vmlinux-4.12.14-lp150.11-default.gz
config-4.12.14-lp150.12.28-default        
vmlinux-4.12.14-lp150.12.19-default.gz
config-4.12.14-lp150.12.45-default        
vmlinux-4.12.14-lp150.12.22-default.gz
config-4.12.14-lp150.12.48-default        
vmlinux-4.12.14-lp150.12.25-default.gz
efi                                       
vmlinux-4.12.14-lp150.12.28-default.gz
grub2                                     
vmlinux-4.12.14-lp150.12.45-default.gz
initrd                                    
vmlinux-4.12.14-lp150.12.48-default.gz
initrd-4.12.14-lp150.11-default            vmlinuz
initrd-4.12.14-lp150.12.19-default         vmlinuz-4.12.14-lp150.11-default
initrd-4.12.14-lp150.12.22-default         vmlinuz-4.12.14-lp150.12.19-default
initrd-4.12.14-lp150.12.25-default         vmlinuz-4.12.14-lp150.12.22-default
initrd-4.12.14-lp150.12.28-default         vmlinuz-4.12.14-lp150.12.25-default
initrd-4.12.14-lp150.12.45-default         vmlinuz-4.12.14-lp150.12.28-default
initrd-4.12.14-lp150.12.48-default         vmlinuz-4.12.14-lp150.12.45-default
symtypes-4.12.14-lp150.12.19-default.gz    vmlinuz-4.12.14-lp150.12.48-default
symtypes-4.12.14-lp150.12.22-default.gz
localhost:~ #