gnu: Adjust latest perl modules to new 'modify-phases' syntax.

* gnu/packages/compression.scm (perl-compress-raw-zlib)[arguments]:
  Add missing quotes, as needed since commit f8503e2b.
* gnu/packages/perl.scm (perl-ipc-run)[arguments]: Likewise.
* gnu/packages/xml.scm (perl-xml-sax)[arguments]: Likewise.