os.getAppFilename() returns incorrect results on OpenBSD

[euantorano]

It looks like os.getAppFilename() returns an incorrect path on OpenBSD.

I create the following file in /home/euan/src/appdir/test.nim:

import os

const compilerExe = getCurrentCompilerExe()

echo "compiler: ", compilerExe
echo "app filename: ", getAppFilename()
echo "app dir: ", getAppDir()

Compiled it with nim --cc:clang test.nim then ran it. The output was:

compiler: /home/euan/src/nim-1.0.0/bin/nim
app filename: /bin/test
app dir: /bin

The compiler is the only one that is correct - the app filename should be /home/euan/src/appdir/test.

I wonder if this is related to #12320 and #12139...