gnu: Synchronize synopses and descriptions with the Womb.

* gnu/packages/gimp.scm (gimp): Synchronize synopsis and description.
* gnu/packages/gl.scm (guile-opengl): Likewise.
* gnu/packages/gnome.scm (gnumeric): Likewise.

gnu/packages/gimp.scm

@@ -139,8 +139,10 @@ buffers.")
      `(("pkg-config" ,pkg-config)
        ("intltool" ,intltool)))
     (home-page "http://gimp.org")
-    (synopsis "Image manipulation program.")
-    (description "GIMP is the GNU Image Manipulation Program. It is a freely
-distributed piece of software for such tasks as photo retouching, image
-composition and image authoring.")
+    (synopsis "GNU Image Manipulation Program")
+    (description
+     "GIMP is an application for image manipulation tasks such as photo
+retouching, composition and authoring.  It supports all common image formats
+as well as specialized ones.  It features a highly customizable interface
+that is extensible via a plugin system.")
     (license license:gpl3+))) ; some files are lgplv3

gnu/packages/gl.scm

@@ -207,8 +207,8 @@ emulation to complete hardware acceleration for modern GPUs.")
                                             "freeglut"))
                  %standard-phases)))
     (home-page "http://gnu.org/s/guile-opengl")
-    (synopsis "OpenGL bindings for Guile")
+    (synopsis "Guile binding for the OpenGL graphics API")
     (description
-     "GNU Guile-OpenGL is a library providing access to the OpenGL graphics
-API from GNU Guile.")
+     "Guile-OpenGL is a library for Guile that provides bindings to the
+OpenGL graphics API.")
     (license l:lgpl3+)))

gnu/packages/gnome.scm

@@ -1178,9 +1178,13 @@ controls using the Bonobo component framework.")
      `(("intltool" ,intltool)
        ("pkg-config" ,pkg-config)))
     (home-page "http://www.gnumeric.org")
-    (synopsis "Spreadsheet program")
-    (description "Gnumeric is a spreadsheet program for GNOME.  The project aims
-to become a drop in replacement for proprietary spreadsheets.")
-    (license 
+    (synopsis "Spreadsheet application")
+    (description
+     "GNUmeric is a GNU spreadsheet application, running under GNOME.  It is
+interoperable with other spreadsheet applications.  It has a vast array of
+features beyond typical spreadsheet functionality, such as support for linear
+and non-linear solvers, statistical analysis, and telecommunication
+engineering.")
+    (license
     ;; Dual licensed under GPLv2 or GPLv3 (both without "or later")
      (list license:gpl2 license:gpl3))))