Make mpv agnostic regarding possible mismatches of built vs running
dependencies. Given the existence of BUILDLINK_A[BP]I_DEPENDS and
PKGREVISION bumps our use in pkgsrc can be considered a legitimate
one.

Delete the print_libav_versions() check to reflect that.

Bump PKGREVISION.

Thanks to <wiz> for noticing that!

Index: Makefile
===================================================================
RCS file: /cvsroot/pkgsrc/multimedia/mpv/Makefile,v
retrieving revision 1.41
diff -u -p -r1.41 Makefile
--- Makefile	20 Oct 2016 08:27:01 -0000	1.41
+++ Makefile	1 Nov 2016 11:13:39 -0000
@@ -1,6 +1,7 @@
 # $NetBSD: Makefile,v 1.41 2016/10/20 08:27:01 leot Exp $
 
 DISTNAME=	mpv-0.21.0
+PKGREVISION=	1
 CATEGORIES=	multimedia
 MASTER_SITES=	${MASTER_SITE_GITHUB:=mpv-player/}
 GITHUB_TAG=	v${PKGVERSION_NOREV}
Index: distinfo
===================================================================
RCS file: /cvsroot/pkgsrc/multimedia/mpv/distinfo,v
retrieving revision 1.27
diff -u -p -r1.27 distinfo
--- distinfo	20 Oct 2016 08:27:01 -0000	1.27
+++ distinfo	1 Nov 2016 11:13:39 -0000
@@ -4,3 +4,4 @@ SHA1 (mpv-0.21.0.tar.gz) = 8f90df723faab
 RMD160 (mpv-0.21.0.tar.gz) = 7ca393d2d80cc3f56cf93a871e39b332883a0899
 SHA512 (mpv-0.21.0.tar.gz) = f4072fc3a351643f94c64c8da43560458d53072e61d099670903319f21576ccbdfa053a57c1ac09fe51e067e5055e1bb691ee93645ea2dea04b95fd96d937d16
 Size (mpv-0.21.0.tar.gz) = 2812584 bytes
+SHA1 (patch-player_main.c) = fefba566f5130d24b748b7ab4ecc48bf42bc6bdd
Index: patches/patch-player_main.c
===================================================================
RCS file: patches/patch-player_main.c
diff -N patches/patch-player_main.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ patches/patch-player_main.c	1 Nov 2016 11:13:39 -0000
@@ -0,0 +1,26 @@
+$NetBSD$
+
+Avoid to check mismatched built vs running libraries version.
+The use in pkgsrc can be considered a legitimate one.
+
+--- player/main.c.orig	2016-10-19 21:10:13.000000000 +0000
++++ player/main.c
+@@ -429,18 +429,6 @@ int mp_initialize(struct MPContext *mpct
+ 
+     handle_deprecated_options(mpctx);
+ 
+-    if (!print_libav_versions(mp_null_log, 0)) {
+-        // Using mismatched libraries can be legitimate, but even then it's
+-        // a bad idea. We don't acknowledge its usefulness and stability.
+-        print_libav_versions(mpctx->log, MSGL_FATAL);
+-        MP_FATAL(mpctx, "\nmpv was compiled against a different version of "
+-                 "FFmpeg/Libav than the shared\nlibrary it is linked against. "
+-                 "This is most likely a broken build and could\nresult in "
+-                 "misbehavior and crashes.\n\nmpv does not support this "
+-                 "configuration and will not run - rebuild mpv instead.\n");
+-        return -1;
+-    }
+-
+     if (!mpctx->playlist->first && !opts->player_idle_mode)
+         return -3;
+