test-serve: ensure KILLQUIETLY is only used once...
test-serve: ensure KILLQUIETLY is only used once
49463314c24f introduced a feature to the hgserve() function that
suppresses errors from kill(1). It wrongly assumed that setting an
environment variable when calling a function would make it local to
the function. It ended up suppressing kill errors for every call
thereafter.
This patch sets KILLQUIETLY=N after use.
