Fix bug for strange make.c and RULE_UPDATED interaction.
If you have a rule with flag RULE_UPDATED, then any dependents
must have fate greater than T_FATE_STABLE to be included.
However, make.c can get confused for dependency trees like
this:
a --> b --> d
\-> c --> d
In this case, make.c can set the fate of "d" before it ever
gets to "c". So you will end up with a T_FATE_MISSING target
"c" with dependents with T_FATE_STABLE.
If "c" happens to have a RULE_UPDATED action, RULE_UPDATED,
make1list() will refrain from including it in the list of
targets.
We hack around this here by explicitly checking for this case
and manually tweaking the dependents fate to at least
T_FATE_NEWER.
An alternate fix is to modify make1cmds() to take a TARGET*
instead of an ACTIONS* and, when the target is T_FATE_MISSING,
have it mask off the RULE_UPDATED flag when calling
make1list().