[LTP] [question] tst_rhost_run.sh not installed

[Boyang Xue]

Hi,

I'm trying to build, install and run LTP like this:
```
git clone https://github.com/linux-test-project/ltp.git repo_ltp
pushd repo_ltp/
make autotools
./configure
make
make install
# export RHOST, LHOST, etc. test vars
export LTPROOT=/opt/ltp; export PATH=$LTPROOT/bin:$LTPROOT/testcases/bin:$PATH
./runltp -d /test -f net.nfs
```

During the test run, it complains that
```
/opt/ltp/testcases/bin/tst_net.sh: line 979: bash:: command not found
```
line#979 is:
```
eval $(tst_rhost_run -c 'tst_net_iface_prefix -r '$IPV4_RHOST || echo "exit $?")
```

I can find tst_net_iface_prefix in the $PATH, so it should be
tst_rhost_run which leads to the error.
Searching for tst_rhost_run in /opt/ltp and $PATH shows not found, so
is it a bug or did I miss something that the file wasn't installed?

It happens on the latest LTP:
```
# git rev-parse --short HEAD
5d8f9dfd6
```

Thanks,
Boyang