* Makefile.am: Use ${MKDIR_P}
* device-src/Makefile.am, ndmp-src/Makefile.am, xfer-src/Makefile.am:
  Use ${SED}


git-svn-id: https://svn.code.sf.net/p/amanda/code/amanda/trunk@5790 a8d146d6-cc15-0410-8900-af154a0219e0