gud.el parses args incorrectly

[Yuri Shtil]

It is impossible to pass quoted arguments to the gud.
For example if I say on the command line:

perl -d foo.pl one "two and three",
the ARGV in perl has two elements:
index 0 -  one
index 1 - two and three

However if I invoke perldb with the same command, I get:

index 0 - one
index 1 - "two
index 2 - and
index 3 three"

The problem, I believe is that gud-common-init in gud.el uses 
split-string which uses white spaces as delimiters and does not splits 
the command line in shell-like way as I would expect.