modsave flash:
 * ensure the new tarball containing the freetz configuration has different md5sum so that unchanged md5sum could be used as an indicator for a failed write
 * refs #2380


git-svn-id: file:///var/svn/freetz/trunk@11750 149334a1-2f27-0410-a3b9-fc62619ac1e6
modsave flash:
 * restore "return value"-check lost in r10495
 * refs #2380


git-svn-id: file:///var/svn/freetz/trunk@11751 149334a1-2f27-0410-a3b9-fc62619ac1e6
modsave flash:
 * add some local keywords
 * refs #2380


git-svn-id: file:///var/svn/freetz/trunk@11752 149334a1-2f27-0410-a3b9-fc62619ac1e6