gnu: Fix common unquote typos.

It's easy to mistype ‘("foo" foo)’ as ‘("foo", foo)’ (which also works).
Fix such typos for the proper edification of our young.

* gnu/packages/android.scm: Move unquotes to their operands.
* gnu/packages/bootloaders.scm: Likewise.
* gnu/packages/build-tools.scm: Likewise.
* gnu/packages/chemistry.scm: Likewise.
* gnu/packages/compression.scm: Likewise.
* gnu/packages/connman.scm: Likewise.
* gnu/packages/django.scm: Likewise.
* gnu/packages/emulators.scm: Likewise.
* gnu/packages/engineering.scm: Likewise.
* gnu/packages/file-systems.scm: Likewise.
* gnu/packages/freedesktop.scm: Likewise.
* gnu/packages/games.scm: Likewise.
* gnu/packages/gimp.scm: Likewise.
* gnu/packages/gl.scm: Likewise.
* gnu/packages/gnome.scm: Likewise.
* gnu/packages/graphics.scm: Likewise.
* gnu/packages/haskell.scm: Likewise.
* gnu/packages/irc.scm: Likewise.
* gnu/packages/julia.scm: Likewise.
* gnu/packages/kde-frameworks.scm: Likewise.
* gnu/packages/linux.scm: Likewise.
* gnu/packages/lua.scm: Likewise.
* gnu/packages/mail.scm: Likewise.
* gnu/packages/make-bootstrap.scm: Likewise.
* gnu/packages/messaging.scm: Likewise.
* gnu/packages/music.scm: Likewise.
* gnu/packages/networking.scm: Likewise.
* gnu/packages/ocaml.scm: Likewise.
* gnu/packages/perl.scm: Likewise.
* gnu/packages/python.scm: Likewise.
* gnu/packages/python-web.scm: Likewise.
* gnu/packages/qt.scm: Likewise.
* gnu/packages/ratpoison.scm: Likewise.
* gnu/packages/sdl.scm: Likewise.
* gnu/packages/sml.scm: Likewise.
* gnu/packages/terminals.scm: Likewise.
* gnu/packages/text-editors.scm: Likewise.
* gnu/packages/video.scm: Likewise.
* gnu/packages/virtualization.scm: Likewise.
* gnu/packages/vulkan.scm: Likewise.
* gnu/packages/wget.scm: Likewise.
* gnu/packages/wine.scm: Likewise.
* gnu/packages/wm.scm: Likewise.
* gnu/packages/xdisorg.scm: Likewise.
* gnu/packages/xml.scm: Likewise.
* gnu/packages/xorg.scm: Likewise.

gnu/packages/python.scm

@@ -11975,7 +11975,7 @@ library.")
        "08if5yax1xn5yfp8p3765ccjmfcv9di7i4m5jckgnwvdsgznwkbj"))))
    (build-system python-build-system)
    (native-inputs `(("pkg-config" ,pkg-config)
-                    ("python-cython", python-cython)))
+                    ("python-cython" ,python-cython)))
    (home-page "https://github.com/aresch/rencode")
    (synopsis "Serialization of heterogeneous data structures")
    (description
@@ -12158,7 +12158,7 @@ created by running @code{python setup.py develop}).")
     (build-system python-build-system)
     (propagated-inputs
      `(("python-tqdm" ,python-tqdm)
-       ("python-pkginfo", python-pkginfo)
+       ("python-pkginfo" ,python-pkginfo)
        ("python-requests" ,python-requests)
        ("python-requests-toolbelt" ,python-requests-toolbelt)))
     (home-page "https://github.com/pypa/twine")
@@ -12568,7 +12568,7 @@ is the new Pyro version that is actively developed.")
      `(("netcdf" ,netcdf)))
     (propagated-inputs
      `(("python-numpy" ,python2-numpy-1.8)
-       ("python-pyro", python2-pyro)))
+       ("python-pyro" ,python2-pyro)))
     (arguments
      ;; ScientificPython is not compatible with Python 3
      `(#:python ,python-2
@@ -12915,7 +12915,7 @@ and other tools.")
              #t)))))
     (propagated-inputs
      `(("python-pygments" ,python-pygments)
-       ("python-requests", python-requests)
+       ("python-requests" ,python-requests)
        ("python-babel" ,python-babel) ; optional, for internationalization
        ("python-curtsies" ,python-curtsies) ; >= 0.1.18
        ("python-greenlet" ,python-greenlet)