Amended descriptions for SoCal natural gas

From: DISP SYMBOL BATES DEC FREQ CURR UOM DESCRIPTION GD IGBDL00 hluw 3 DW USD MMB SoCal Gas Pk TDt Com GD IGBDL20 hl 3 DW USD MMB SoCal Gas Pk TDt Abs GD IGBDL04 hlu 3 WA USD MMB SoCal Gas Pk WAvg GM IGBDL03 hluw 3 MA USD MMB SoCal Gas Pk Mo GD BGBDL21 u 0 DA UNS CON SoCal Gas Pk FDt DlCt GM BGBDL03 u 0 MA UNS CON SoCal Gas Pk DlCt Mo GM CGBDL03 u 0 MA UNS UNS SoCal Gas Pk Tier Mo

TO: DISP SYMBOL BATES DEC FREQ CURR UOM DESCRIPTION GD IGBDL00 hluw 3 DW USD MMB SoCal Gas TDt Com GD IGBDL20 hl 3 DW USD MMB SoCal Gas TDt Abs GD IGBDL04 hlu 3 WA USD MMB SoCal Gas WAvg GM IGBDL03 hluw 3 MA USD MMB SoCal Gas Mo GD BGBDL21 u 0 DA UNS CON SoCal Gas FDt DlCt GM BGBDL03 u 0 MA UNS CON SoCal Gas DlCt Mo GM CGBDL03 u 0 MA UNS UNS SoCal Gas Tier Mo