gnu: gphoto2: Update to 2.5.27.

* gnu/packages/photo.scm (gphoto2): Update to 2.5.27.

gnu/packages/photo.scm

@@ -271,14 +271,14 @@ (define-public libgphoto2
 (define-public gphoto2
   (package
     (name "gphoto2")
-    (version "2.5.26")
+    (version "2.5.27")
     (source (origin
               (method url-fetch)
               (uri (string-append "mirror://sourceforge/gphoto/gphoto/" version
                                   "/gphoto2-" version ".tar.bz2"))
               (sha256
                (base32
-                "0bxbcn31xalsvjp8fra324hf2105y3ps7zlyfz11v71j0lxj2lvn"))))
+                "0f4d3q381jnnkcqkb2dj1k709skp65qihl5xm80zandvl69lw19h"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)))