Cannot portably split on $Config{path_sep} -- use quotemeta($Config{path_sep}).

Cannot portably split on $Config{path_sep} -- use quotemeta($Config{path_sep}).

Broken in fc5e5837c991d3d3224259ff5c1d728d4e0636e2.

On VMS we were getting:

$ perl -"MConfig" -e "print join('+',split $Config{path_sep}, 'foo|bar|baz');"
f+o+o+|+b+a+r+|+b+a+z

which is a *lot* more pieces than we want.  What was intended was:

$ perl -"MConfig" -e "print join('+',split quotemeta($Config{path_sep}), 'foo|bar|baz');"
foo+bar+baz

No version bump as this is test infrastructure and 1.55 has not been
released outside of development releases of blead.