Enable demandimport only in scripts, not in importable modules (issue605)
This way other applications can choose if and when they want this feature,
because it might be problematic if those applications rely on ImportError.
adding a
adding b
adding dir.h/foo
adding t.h
adding t/b
adding t/e.h
adding t/x
hg locate a
a
locate succeeded
hg locate NONEXISTENT
locate failed
hg locate
a
b
dir.h/foo
t.h
t/b
t/e.h
t/x
hg locate a
hg locate NONEXISTENT
hg locate relpath:NONEXISTENT
hg locate
b
dir.h/foo
t.h
t/b
t/e.h
t/x
hg locate -r 0 a
a
hg locate -r 0 NONEXISTENT
hg locate -r 0 relpath:NONEXISTENT
hg locate -r 0
a
b
dir.h/foo
t.h
t/b
t/e.h
t/x
% -I/-X with relative path should work
hg locate
b
dir.h/foo
t.h
t/b
t/e.h
t/x
hg locate -I ../t
t/b
t/e.h
t/x
hg locate t/**
t/b
t/e.h
t/x
hg locate b
../b
../t/b
hg locate *.h
../t.h
../t/e.h
hg locate path:t/x
../t/x
hg locate re:.*\.h$
../t.h
../t/e.h
hg locate -r 0 b
../b
../t/b
hg locate -r 0 *.h
../t.h
../t/e.h
hg locate -r 0 path:t/x
../t/x
hg locate -r 0 re:.*\.h$
../t.h
../t/e.h