makefile: improve logging, add stage label for Running line

the stage filename stems and which outputs are produced
is somewhat idiosyncratic and in some places inconsistent
and ambigious(such as finish/final).

Therefore simply log "Running pdn.tcl, stage 2_floorplan_pdn".

This is accurate and precise as far as we can be and remains
accurate if filename stems and inputs/outputs are made
more consistent in the future.

Signed-off-by: Øyvind Harboe <[email protected]>

Author: oharboe

flow/Makefile

@@ -571,7 +571,7 @@ $(if $(5),$(5),$(RESULTS_DIR))/$(1)$(if $(4),$(4),.odb): $(2)
 
 .PHONY: do-$(1)
 do-$(1): copyright.txt
-	@echo Running $(1) $(3).tcl
+	@echo Running $(3).tcl, stage $(1)
 	@(trap 'mv $(LOG_DIR)/$(1).tmp.log $(LOG_DIR)/$(1).log' EXIT; \
 	 $(OPENROAD_CMD) $(SCRIPTS_DIR)/noop.tcl 2>&1 >$(LOG_DIR)/$(1).tmp.log; \
 	 $(TIME_CMD) $(OPENROAD_CMD) -no_splash $(SCRIPTS_DIR)/$(3).tcl -metrics $(LOG_DIR)/$(1).json 2>&1 | \