GSF.Core: Fixed off-by-one error in CharExtensions.ToUpper().
GSF.Core: Fixed off-by-one error in CharExtensions.ToUpper().

GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf,GridProtectionAlliance/gsf