bin/50547: src/usr.sbin/sup/source/expand.c: 2 * possible bad size ?

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>Number:         50547
>Category:       bin
>Synopsis:       src/usr.sbin/sup/source/expand.c: 2 * possible bad size ?
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    bin-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sun Dec 13 17:00:00 +0000 2015
>Originator:     David Binderman
>Release:        cvs dated 20151210
>Organization:
>Environment:
>Description:
[src/usr.sbin/sup/source/expand.c:136]: (warning) Size of pointer 'path' used instead of size of its data.

  strncpy(path, path + 1, sizeof path - 1);

Similar thing a few lines later

[src/usr.sbin/sup/source/expand.c:138]: (warning) Size of pointer 'path' used instead of size of its data.

  strncpy(path, (char *) getenv("HOME"), sizeof path - 1);
            path[sizeof path - 1] = '\0';

>How-To-Repeat:

>Fix: