mk_pypack_linux.sh: simplify, improve output, rename -> mk_wheel_multilinux

devtools/deploy/linux/mk_pypack_linux.sh.in

@@ -3,8 +3,9 @@
 #  **************************************************************************  #
 #   BornAgain: simulate and fit reflection and scattering
 #
-#   @file      mk_pypack_linux.sh
-#   @brief     Extract the dependencies of shared libraries (Linux only)
+#   @file      source:     devtools/deploy/linux/mk_pypack_linux.sh.in
+#              configured: build/var/mk_pypack_linux.sh
+#   @brief     Build a multilinux wheel, including all shared libraries dependencies
 #
 #   @homepage  http://apps.jcns.fz-juelich.de/BornAgain
 #   @license   GNU General Public License v3 or higher (see COPYING)