Update gammapkt.cc #7310

Job	Run time
classicmode_1d_3dgrid	4m 23s
classicmode_3d	8m 20s
kilonova_1d_1dgrid	4m 56s
kilonova_1d_3dgrid	5m 15s
kilonova_2d_2dgrid	6m 45s
kilonova_2d_2dgrid_barnesthermalisation	5m 23s
kilonova_2d_2dgrid_expansionopac	5m 2s
kilonova_2d_2dgrid_xcomgammaphotoion	5m 21s
kilonova_2d_3dgrid	6m 50s
nebular_1d_3dgrid	12m 3s
nebular_1d_3dgrid_limitbfest	14m 34s
classicmode_1d_3dgrid testmode ON	15m 46s
classicmode_3d testmode ON	23m 20s
kilonova_1d_1dgrid testmode ON	10m 32s
kilonova_1d_3dgrid testmode ON	11m 18s
kilonova_2d_2dgrid testmode ON	18m 40s
kilonova_2d_2dgrid_barnesthermalisation testmode ON	16m 49s
kilonova_2d_2dgrid_expansionopac testmode ON	15m 4s
kilonova_2d_2dgrid_xcomgammaphotoion testmode ON	15m 54s
kilonova_2d_3dgrid testmode ON	19m 34s
nebular_1d_3dgrid testmode ON	25m 20s
nebular_1d_3dgrid_limitbfest testmode ON	28m 28s
combine_checksums	18s
	4h 39m 55s

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