Makefile.in: Use only standard options compatible with BSD install

Don't use options specific to FSF's coreutils install.

Signed-off-by: Titus von Boxberg <titus@v9g.de>
Message-Id: <51587db99510a9ec08f8.1352226968@tschetwerikow.boxberg.lan>
Patchwork-Id: 197532

 This is NOT the official version of dialog.  This version has been

 significantly modified from the original.  It is for use by the Linux

 kernel configuration script.  Please do not bother Savio Lam with 

 questions about this program.