gnu: coq: Update to 8.5pl2.

* gnu/packages/ocaml.scm (coq): Update to 8.5pl2.
  [arguments]: Configure script takes single hyphen arguments.

gnu/packages/ocaml.scm

@@ -329,14 +329,14 @@ written in Objective Caml.")
 (define-public coq
   (package
     (name "coq")
-    (version "8.4pl6")
+    (version "8.5pl2")
     (source (origin
               (method url-fetch)
               (uri (string-append "https://coq.inria.fr/distrib/V" version
                                   "/files/" name "-" version ".tar.gz"))
               (sha256
                (base32
-                "1mpbj4yf36kpjg2v2sln12i8dzqn8rag6fd07hslj2lpm4qs4h55"))))
+                "0wyywia0darak2zmc5v0ra9rn0b9whwdfiahralm8v5za499s8w3"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("texlive" ,texlive)
@@ -353,9 +353,9 @@ written in Objective Caml.")
                     (mandir (string-append out "/share/man"))
                     (browser "icecat -remote \"OpenURL(%s,new-tab)\""))
                (zero? (system* "./configure"
-                                      "--prefix" out
-                                      "--mandir" mandir
-                                      "--browser" browser)))))
+                               "-prefix" out
+                               "-mandir" mandir
+                               "-browser" browser)))))
          (replace 'build
            (lambda _
              (zero? (system* "make" "-j" (number->string