tracker: add missing libexif support, revbump.

srcpkgs/tracker/template

@@ -6,7 +6,7 @@ distfiles="${GNOME_SITE}/$pkgname/0.12/$pkgname-$version.tar.xz"
 build_style=gnu-configure
 configure_args="--enable-libflac --enable-libvorbis --disable-unit-tests
 --disable-static"
-revision=2
+revision=3
 short_desc="Personal search tool and storage system"
 maintainer="Juan RP <xtraeme@gmail.com>"
 license="GPL-2"
@@ -42,3 +42,4 @@ Add_dependency build taglib-devel
 Add_dependency build giflib-devel
 Add_dependency build totem-pl-parser-devel
 Add_dependency build gupnp-dlna-devel
+Add_dependency build libexif-devel