* installcheck/Installcheck/Rest.pm: Retrun error if can't fork
  starman.
* installcheck/Amanda_Rest_Configs.pl,
  installcheck/Amanda_Rest_Dles.pl,
  installcheck/Amanda_Rest_Labels.pl,
  installcheck/Amanda_Rest_Version.pl: SKIP test if forking starman
  failed.


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/trunk@5757 a8d146d6-cc15-0410-8900-af154a0219e0