Signed-off-by: Paulo Alcantara <pcacjr@gmail.com>

In 'libinstaller/syslxopt.c' on line 71 the "s" (undercast) is missing in:

   const char short_options[] = "t:fid:UuzS:H:rvho:OM:ma";

Adding the 's' there seems to solve our problem.

Remove a lengthy warning message which cause the actual command
reference to overflow a 24-line screen.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Fix fatal warnings in syslxopt.c partly due to legal but non-idiomatic
use of switch().  Since the only purpose was to conditionalize single
output statements, just do it explicitly.

In addition, since they are conditional messages, there is no need to
explain when they apply.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Gert Hulselmans noticed this.

We will produce an error message if a user attempts
to use an option we don't implement.

Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>

Don't make non-executable files +x...

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

We will produce an error message if a user attempts
to use an option we don't implement.

Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>

In order to consolidate the installer option-parsing system,
we add the --mbr (-m), --active (-a), and --force (-f)
options from the DOS, Win32, and mtools installers to
libinstaller.

Since the -m and -a options are not currently valid for the
Linux 'syslinux' and 'extlinux' installers, we add error
messages to both of these.  The -f option is allowed but
does nothing for them.

Signed-off-by: Shao Miller <shao.miller@yrdsb.edu.on.ca>