Clean up Makefile
Clean up Makefile

Split long PROGRAMS line to multiple lines.

Signed-off-by: Pekka Enberg <add4fcd06328a394f0ad91feda7ee057316dc5ed@kernel.org>

svdev/libtrading,femtotrader/libtrading,penberg/libtrading,fengzhyuan/libtrading,svdev/libtrading,fengzhyuan/libtrading,mstanichenko/libtrading,Bitcoinsulting/libtrading,divaykin/libtrading,penberg/libtrading,NunoEdgarGub1/libtrading,femtotrader/libtrading,mstanichenko/libtrading,libtrading/libtrading,etoestja/libtrading,Bitcoinsulting/libtrading,jvirtanen/libtrading,divaykin/libtrading,libtrading/libtrading,etoestja/libtrading,NunoEdgarGub1/libtrading,jvirtanen/libtrading