tests: unset variable HG if it is set
When hg tries to call itself it can call a different hg executable when this
variable is set. Some tests fail when the called hg version is different.
[ original upstream message ]
Patrick Mezard <patrick@mezard.eu> [Mon, 20 Aug 2012 22:36:51 +0200] rev 1128
killdaemons: take file argument explicitely
It makes it easier to use as a generic replacement for kill utility,
mostly for Windows tests.
[ original upstream message ]