[Patches] Add -t flag to Python executable for test and install targets

[Skip Montanaro]

In python-dev Paul Prescod raised the question whether -t (tab warning)
should be the default behavior in future versions of Python.  In the ensuing 
discussion someone commented that the standard for the Python distribution
is to indent using all spaces.  

I decided to add -t to the test and install targets to catch problems
(caught a few - I'll try and send patches shortly).  The attached diff for
the toplevel Makefile.in seems to do the trick.

Skip Montanaro | http://www.mojam.com/
skip@mojam.com | http://www.musi-cal.com/
"Languages that change by catering to the tastes of non-users tend not to do
so well." - Doug Landauer

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*** /tmp/Makefile.in.~1.81~	Thu Feb 10 08:41:53 2000
--- /tmp/Makefile.in	Thu Feb 10 08:41:53 2000
***************
*** 234,240 ****
  # Test the interpreter (twice, once without .pyc files, once with)
  TESTOPTS=	
  TESTPROG=	$(srcdir)/Lib/test/regrtest.py
! TESTPYTHON=	./python$(EXE)
  test:		all
  		-rm -f $(srcdir)/Lib/test/*.py[co]
  		-PYTHONPATH= $(TESTPYTHON) $(TESTPROG) $(TESTOPTS)
--- 234,240 ----
  # Test the interpreter (twice, once without .pyc files, once with)
  TESTOPTS=	
  TESTPROG=	$(srcdir)/Lib/test/regrtest.py
! TESTPYTHON=	./python$(EXE) -t
  test:		all
  		-rm -f $(srcdir)/Lib/test/*.py[co]
  		-PYTHONPATH= $(TESTPYTHON) $(TESTPROG) $(TESTOPTS)
***************
*** 346,352 ****
  			done; \
  		done
  		PYTHONPATH=$(LIBDEST) \
! 			./python$(EXE) $(LIBDEST)/compileall.py $(LIBDEST)
  		PYTHONPATH=$(LIBDEST) \
  			./python$(EXE) -O $(LIBDEST)/compileall.py $(LIBDEST)
  
--- 346,352 ----
  			done; \
  		done
  		PYTHONPATH=$(LIBDEST) \
! 			./python$(EXE) -t $(LIBDEST)/compileall.py $(LIBDEST)
  		PYTHONPATH=$(LIBDEST) \
  			./python$(EXE) -O $(LIBDEST)/compileall.py $(LIBDEST)