Fix building on older than EL8

Signed-off-by: Neal Gompa <ngompa13@gmail.com>

golang.spec

@@ -310,7 +310,11 @@ Requires(preun): %{_sbindir}/update-alternatives
 # This is an odd issue, still looking for a better fix.
 Requires:       glibc
 Requires:       gcc
+%if 0%{?rhel} && 0%{?rhel} < 8
+Requires:       git, subversion, mercurial
+%else
 Recommends:     git, subversion, mercurial
+%endif
 %description    bin
 %{summary}