gnu: Sync GNU synopses and descriptions.

* gnu/packages/games.scm (gnugo): Adjust synopsis.
* gnu/packages/libffcall.scm (libffcall): Likewise.
* gnu/packages/lisp.scm (clisp): Adjust synopsis and description.

gnu/packages/games.scm

@@ -849,7 +849,7 @@ multi-system game/emulator system.")
                "0wkahvqpzq6lzl5r49a4sd4p52frdmphnqsfdv7gdp24bykdfs6s"))))
     (build-system gnu-build-system)
     (inputs `(("readline" ,readline)))
-    (synopsis "Go game")
+    (synopsis "Play the game of Go")
     (description "GNU Go is a program that plays the game of Go, in which
 players place stones on a grid to form territory or capture other stones.
 While it can be played directly from the terminal, rendered in ASCII

gnu/packages/libffcall.scm

@@ -41,7 +41,7 @@
          "1lwdskc2w4rr98x9flr2726lmj4190l16r0izg7gqxy50801wwgd"))))
     (build-system gnu-build-system)
     (arguments `(#:parallel-build? #f))
-    (synopsis "Foreign function call libraries")
+    (synopsis "Foreign function calls from interpreters")
     (description
      "GNU Libffcall is a collection of libraries that can be used to build
 foreign function call interfaces in embedded interpreters.")

gnu/packages/lisp.scm

@@ -182,13 +182,11 @@ supporting ASDF, Sockets, Gray streams, MOP, and other useful components.")
        ;; Makefiles seem to have race conditions.
        #:parallel-build? #f))
     (home-page "http://www.clisp.org/")
-    (synopsis "Common Lisp implementation")
-    (description "GNU CLISP is an implementation of ANSI Common Lisp, with
-many extensions.  It includes an interpreter, compiler, debugger, CLOS, MOP,
-an FFI, i18n, POSIX and Perl regular expressions, a socket interface, fast
-bignums, arbitrary precision floats, and more.  An X11 interface is available
-through CLX, Garnet and CLUE/CLIO.  Command line editing is provided by
-readline.")
+    (synopsis "A Common Lisp implementation")
+    (description
+     "GNU CLISP is an implementation of ANSI Common Lisp.  Common Lisp is a
+high-level, object-oriented functional programming language.  CLISP includes
+an interpreter, a compiler, a debugger, and much more.")
     ;; Website says gpl2+, COPYRIGHT file says gpl2; actual source files have
     ;; a lot of gpl3+.  (Also some parts are under non-copyleft licenses, such
     ;; as CLX by Texas Instruments.)  In that case gpl3+ wins out.