test suite Makefile: do not use %.stamp for subsystem targets
test suite Makefile: do not use %.stamp for subsystem targets

Zimmi48/coq,silene/coq,maximedenes/coq,SkySkimmer/coq,SkySkimmer/coq,coq/coq,JasonGross/coq,ejgallego/coq,silene/coq,Zimmi48/coq,ppedrot/coq,coq/coq,SkySkimmer/coq,ppedrot/coq,JasonGross/coq,ppedrot/coq,ppedrot/coq,ejgallego/coq,Matafou/coq,maximedenes/coq,Matafou/coq,JasonGross/coq,Zimmi48/coq,maximedenes/coq,Zimmi48/coq,Matafou/coq,coq/coq,gares/coq,gares/coq,SkySkimmer/coq,silene/coq,gares/coq,gares/coq,maximedenes/coq,ejgallego/coq,ppedrot/coq,gares/coq,coq/coq,JasonGross/coq,maximedenes/coq,ejgallego/coq