Add libstdc++-static to the fedora dockerfile
This fixes //src/test/docker/test_cc_configure-fedora23-fastbuild after
RELNOTES: None.
@@ -2,7 +2,7 @@ FROM fedora:23
RUN dnf -y update && dnf clean all
RUN dnf -y install \
- findutils binutils gcc tar git \
+ findutils binutils gcc tar git libstdc++-static \
gzip zip unzip zlib-devel \
clang java java-devel python \
&& dnf clean all
