pg_ctl restart just appends to command line instead of regenerating original cmd

Patricia Holben (pholben@greatbridge.com) reports a bug with a severity of 3
The lower the number the more severe it is.

Short Description
pg_ctl restart just appends to command line instead of regenerating original cmd

Long Description
I see in the mailing lists that there was activity around the pg_ctl restart function in April. I wondered if there had
beenor was going to be some action taken, and if so, if those involved were aware that subsequent restarts keep adding
tothe command line (rather than re-executing it exactly). For example, if the command at start is: 
/usr/bin/postmaster '-D' '/var/lib/pgsql/data'

Then when "pg_ctl restart" is executed, the "pg_ctl status" will display:
    pg_ctl: postmaster is running (pid: 14635)
    Command line was:
    /usr/bin/postmaster '-D' '/var/lib/pgsql/data' '-D' '/var/lib/pgsql/data'

A subsequent "pg_ctl restart" causes the next "pg_ctl status" to display:
    pg_ctl: postmaster is running (pid: 14635)
    Command line was:
    /usr/bin/postmaster '-D' '/var/lib/pgsql/data' '-D' '/var/lib/pgsql/data' '-D' '/var/lib/pgsql/data'

And so it continues with each subsequent restart.

Sample Code


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