elf-deps: Make single quotes and backslashes optional

[stephen-fox]

When parsing an ELF with -R, oki includes single quotes and backslashes in the output to help write shell scripts. For example:

$ oki -R rizin
-u 'r:/usr/local/lib/librz_util.so.0.7' \
-u 'r:/usr/lib/libm.so.10.1' \
-u 'r:/usr/lib/libutil.so.17.0' \
(...)

It would be nice if we could make this behavior optional so it does this instead:

$ oki -R rizin
-u r:/usr/local/lib/librz_util.so.0.7
-u r:/usr/lib/libm.so.10.1
-u r:/usr/lib/libutil.so.17.0
(...)

The latter format makes it easier to create shared config files that can be used in multiple shell scripts. For example:

#!/bin/sh

set -u

work_dir="${OKI_WORKDIR:-${HOME}/memla}"

oki \
  -p stdio \
  (...)
  -u rwc:/tmp \
  -u r:/usr/libexec/ld.so \
  -u r:/usr/lib \
  -u r:/usr/lib/libc.so.97.0 \
  $(/bin/cat /tmp/rules-example.txt) \
  -- rizin $@

... where /tmp/rules-example.txt contains:

-u r:/usr/local/lib/librz_util.so.0.7
-u r:/usr/lib/libm.so.10.1
-u r:/usr/lib/libutil.so.17.0
(...)

Perhaps this can even be the default behavior and the current behavior can be optional?