More MRTG (you can never have enough of it)

Made some corrections on the MRTG config file, the one that uses only SNMP to graph the data.

Target[local_load]:ssCpuRawUser.0&ssCpuRawUser.0:XXXXXXX@localhost + \
ssCpuRawSystem.0&ssCpuRawSystem.0:XXXXXXX@localhost + \
ssCpuRawNice.0&ssCpuRawNice.0:XXXXXXXXXX@localhost
Title[local_load]: Server CPU load
PageTop[local_load]: CPU load
MaxBytes[local_load]: 100
ShortLegend[local_load]: %
YLegend[local_load]: %
Legend1[local_load]: CPU load
LegendI[local_load]: CPU load: 
LegendO[local_load]:
Options[local_load]: nopercent,noinfo
Unscaled[local_load]: ymwd