[gnome-commander] Fix compilation error with exiv2 0.27.1

[Uwe Scholz <uwescholz src gnome org>]

commit 399ffb9aab87b898424d20d6ff21ed2a09e56958
Author: Mamoru TASAKA <mtasaka fedoraproject org>
Date:   Wed May 15 18:13:29 2019 +0900

    Fix compilation error with exiv2 0.27.1
    
    Due to the change in https://github.com/Exiv2/exiv2/commit/71498411c19e6b97a24245b5a1a22063c76a972a ,
    gnome-cmd-tags-exiv2.cc does not compile with exiv2 0.27.1 .
    
    This commit is to fix the error.

 src/tags/gnome-cmd-tags-exiv2.cc | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/src/tags/gnome-cmd-tags-exiv2.cc b/src/tags/gnome-cmd-tags-exiv2.cc
index 807e6f43..e4b269f3 100644
--- a/src/tags/gnome-cmd-tags-exiv2.cc
+++ b/src/tags/gnome-cmd-tags-exiv2.cc
@@ -33,6 +33,7 @@
 #ifdef HAVE_EXIV2
 #include <exiv2/exif.hpp>
 #include <exiv2/image.hpp>
+#include <exiv2/error.hpp>
 #endif
 
 using namespace std;