Fix build when %_bindir==%_sbindir

Preparation for https://fedoraproject.org/wiki/Changes/Unify_bin_and_sbin.
%install was putting files in the wrong directory.

Also, move %install above %test, because %install happens first, and %test
after that.

device-mapper-persistent-data.spec

@@ -53,16 +53,16 @@ echo %{version}-%{release} > VERSION
 %{cargo_license} > LICENSE.dependencies
 %cargo_vendor_manifest
 
+%install
+# TODO: Check that MANDIR is unused and remove
+%make_install MANDIR=%{_mandir} BINDIR=%{buildroot}%{_sbindir}
+
 %if %{with check}
 %check
 %cargo_test
 #cargo test --test thin_shrink -- --nocapture --test-threads=1
 %endif
 
-%install
-# TODO: Check that MANDIR is unused and remove
-%make_install MANDIR=%{_mandir}
-
 %files
 %doc README.md
 %license COPYING