net-libs/libnsl: tweak config.rpath shell

`config.rpath` contains a bit of invalid shell:

```
checking for shared library run path origin...
    libnsl-1.3.0/config.rpath: line 219: ==: command not found
    libnsl-1.3.0/config.rpath: line 219: ==: command not found
```

```
      if $LD --help 2>&1 | grep ': supported targets:.* elf' > /dev/null; then
        if $libdir == /usr/lib | $libdir == /usr/lib64; then
                     hardcode_libdir_flag_spec=""
             fi
      else
        ld_shlibs=no
      fi
```

The change restores default `config.rpath`.

Reported-by: Agostino Sarubbo
Closes: https://bugs.gentoo.org/732100
Package-Manager: Portage-2.3.103, Repoman-2.3.23
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>

0 files changed, 0 insertions, 0 deletions