populate: fix installing dynamic linker 'ld.so'

The dynamic linker, ld.so, needs the execute bit to be set.
Detect tht the library being installed is in fact ld.so and
install it with 0755 instead of 0644.

Fix detecting src == dst.

Use a simpler command to copy src -> dst.

Also change echo to printf, get rid of 'echo -n', which is
highly non-portable.


-------- diffstat follows --------
/trunk/scripts/populate.in | 76 43 33 0 +++++++++++++++++++++++++++++-----------------------
1 file changed, 43 insertions(+), 33 deletions(-)
(transplanted from d7ddcb75e0f703e2ba6d17169167356389224870)

This is the README for crosstool-NG

To get you started, just enter:

  ./configure --help

You can find a (terse and WIP) documentation in docs/overview.txt.

You can also point your browser to

  http://ymorin.is-a-geek.org/dokuwiki/projects/crosstool

If you need to send a bug report or a patch, please send a mail with subject

prefixed with "[CT_NG]" with the following destinations:

    TO: yann.morin.1998 (at) anciens.enib.fr

    CC: crossgcc (at) sourceware.org

The people that helped are listed in docs/CREDITS. Many thanks to them! :-)

The list of known issues is listed in docs/known-issues.txt.

Aloha!