The "ALL" command should not override a previous NOSETENV tag in a rule.

Command tags are inherited from previous Cmnds in a Cmnd_Spec_List.
There is a special case of the SETENV tag for the "ALL" command,
where SETENV is implied if no explicit SETENV or NOSETENV tag is
specified.  The code to inherit the SETENV tag didn't take into
account that an implied value for SETENV should also be overridden
by an explicit SETENV or NOSETENV tag in the previous Cmnd in the
Cmnd_Spec_List.

Author: millert