eccejobstore: restartFlag was uninitialised, failing completed jobs

Reported as "MOPAC geovib + thermo leads to a monitor error".  The job
ran fine; storing its results died with

    Fatal eccejobstore: Cannot re-parse frequency 'last' type properties
    eccejobstore terminating abnormally, exit status 3

That message comes from initMon(), which only looks at the bookmark file
when restartFlag is set.  On a restart it finds the "EOF" bookmark the
previous monitor wrote on normal completion and refuses, because a
Frequency=last property cannot be recovered by re-reading from EOF.
Correct behaviour -- for an actual restart.

    bool restartFlag;            // never initialised
    ...
    else if (strcmp(argv[it], "-restart") == 0)
      restartFlag = true;

Without -restart the flag kept whatever was on the stack, so an ordinary
launch could be treated as a monitoring restart.  Undefined behaviour
that reads as an intermittent, code-agnostic "the job ran and produced
nothing", since the job really has finished by then and only the storing
of its properties fails.

Initialised to false.

Found while investigating the MOPAC work, but nothing about it is
MOPAC-specific: any code's job could hit it, and whether it did depended
on the stack.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EFMUNbw2UpRPmgsqviAowb

Author: andy

src/apps/jobstore/eccejobstore.C

@@ -32,7 +32,14 @@ int main(int argc, char** argv)
               const string& configFileName, const bool& restartFlag);
 
   string jobId, configFileName;
-  bool restartFlag;
+  //  MUST be initialized.  Without -restart this was whatever happened to
+  //  be on the stack, and a true reading makes jobstore_main() treat an
+  //  ordinary launch as a monitoring restart: it then reads the bookmark
+  //  file, finds "EOF" from the run that just finished, and dies with
+  //  "Cannot re-parse frequency 'last' type properties".  The job itself
+  //  has completed fine at that point; only the storing of its results
+  //  fails, which presents as a job that ran and produced nothing.
+  bool restartFlag = false;
 
   for (int it = 1; it < argc; it++) {
     if (strcmp(argv[it], "-pipe") == 0)