Fix unresolvable

(cherry picked from commit 0dd90cff2e7221227ddae52687730e9a54643c97)

umoci.spec

@@ -4,12 +4,13 @@
 
 Name:           umoci
 Version:        0.4.5
-Release:        3
+Release:        4
 Summary:        Open Container Image manipulation tool
 License:        Apache-2.0
 URL:            https://github.com/opencontainers/umoci
 Source0:        https://github.com/opencontainers/umoci/archive/v0.4.5.tar.gz
-BuildRequires:  fdupes go >= 1.6 go-md2man
+Source1:        https://github.com/cpuguy83/go-md2man/archive/v1.0.10.tar.gz
+BuildRequires:  fdupes go >= 1.6
 
 %description
 Umoci modifies Open Container images. Umoci intends to be a complete manipulation tool for OCI images.
@@ -20,8 +21,13 @@ the OCI.
 
 %prep
 %autosetup -n %{name}-%{version} -p1
+tar -xf %SOURCE1
 
 %build
+cd go-md2man-*
+go build -mod=vendor -o go-md2man .
+export GO_MD2MAN=$(realpath go-md2man)
+cd -
 
 export GOPATH=$HOME/go
 mkdir -pv $HOME/go/src/%{tempdir}
@@ -48,6 +54,9 @@ done
 %{_mandir}/man1/umoci*
 
 %changelog
+* Tue Feb 9 2021 lingsheng <lingsheng@huawei.com> - 0.4.5-4
+- Fix unresolvable
+
 * Wed Sep 9 2020 Ge Wang <wangge20@huawei.com> - 0.4.5-3
 - Modify Source0 Url