Enji Cooper 110559ba69 free/NULL out variables prior to calling strdup to avoid leaking memory
if arguments are specified more than once with "camcontrol timestamp".

CID:		1366829, 1366831
MFC after:	1 week
2016-12-10 23:26:34 +00:00
..
2015-06-13 19:20:56 +00:00
2016-04-19 11:12:57 +00:00