Update Makefile.offline_tutorial_test: salpeter--> ligo

gstlal-inspiral/tests/Makefile.offline_tutorial_test

@@ -511,7 +511,7 @@ H1L1-ALL_MASS_MODEL-1000000000-2048.h5: gstlal_bank.xml.gz
 	$(TIME) gstlal_inspiral_mass_model \
 		--template-bank $< \
 		--output H1L1-ALL_MASS_MODEL-1187000000-2048.h5 \
-		--model salpeter
+		--model ligo
 	@echo ""
 
 H1L1-0000_MARG_DIST_STATS-1000000000-2048.xml.gz: H1L1-0000_CREATE_PRIOR_DIST_STATS-1000000000-2048.xml.gz H1L1-0000_DIST_STATS-1000000000-2048.xml.gz