bug#34180: 27.0.50; argv[0] used incorrectly to find the .pdmp

[Mattias Engdegård]

I don't think Paul meant that we necessarily have to use the embedded dump 
in-place. It could just as well be the source of a memory copy to its runtime 
location; everything would then work just like today except that the dump file 
is embedded into the executable.

Basically, regenerating the dump file means relinking the executable and that's 
it, no mucking about with executables required. It is easy to write a portable 
solution that works everywhere.