[libcryptui] Allow building with gnupg 2.1.

[Antoine Jacoutot <ajacoutot src gnome org>]

commit 183d7619c29482a5d4ae8019692899f87f198171
Author: Antoine Jacoutot <ajacoutot gnome org>
Date:   Sat Oct 17 08:52:35 2015 +0200

    Allow building with gnupg 2.1.

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 406b9f3..b621b23 100644
--- a/configure.ac
+++ b/configure.ac
@@ -95,7 +95,7 @@ AC_ARG_ENABLE(gpg-check,
        DO_CHECK=$enableval, DO_CHECK=yes)
 
 if test        "$DO_CHECK" = "yes"; then
-       accepted_versions="1.2 1.4 2.0"
+       accepted_versions="1.2 1.4 2.0 2.1"
        AC_PATH_PROGS(GNUPG, [gpg gpg2], no)
        AC_DEFINE_UNQUOTED(GNUPG, "$GNUPG", [Path to gpg executable.])
        ok="no"