package.lua: Fix source package not containing scripts.c
package.lua: Fix source package not containing scripts.c

dcourtois/premake-core,premake/premake-core,noresources/premake-core,starkos/premake-core,noresources/premake-core,dcourtois/premake-core,premake/premake-core,dcourtois/premake-core,dcourtois/premake-core,sleepingwit/premake-core,premake/premake-core,starkos/premake-core,starkos/premake-core,premake/premake-core,noresources/premake-core,mandersan/premake-core,dcourtois/premake-core,starkos/premake-core,noresources/premake-core,LORgames/premake-core,dcourtois/premake-core,LORgames/premake-core,LORgames/premake-core,sleepingwit/premake-core,starkos/premake-core,sleepingwit/premake-core,sleepingwit/premake-core,noresources/premake-core,premake/premake-core,noresources/premake-core,starkos/premake-core,LORgames/premake-core,premake/premake-core,noresources/premake-core,mandersan/premake-core,mandersan/premake-core,mandersan/premake-core,LORgames/premake-core,premake/premake-core,dcourtois/premake-core,starkos/premake-core,sleepingwit/premake-core,mandersan/premake-core