gnu: Add missing quotes in phase names passed to 'modify-phases'.
This is a followup to
f8503e2.
* gnu/packages/gnome.scm (glib-networking): Add missing quotes before
phase names passed to 'modify-phases'.
(libsoup): Likewise.
(gnome-terminal): Likewise.
(colord): Likewise.
(geoclue): Likewise.
* gnu/packages/gtk.scm (at-spi2-core, at-spi2-atk): Likewise.
* gnu/packages/haskell.scm (ghc-network): Likewise.
* gnu/packages/imagemagick.scm (perl-image-magick): Likewise.
* gnu/packages/video.scm (aalib): Likewise.
* gnu/packages/web.scm (nginx): Likewise.