tools/ceph_kvstore_tool: extract StoreTool into kvstore_tool.cc
to workaround n bug in GCC 7.3, which leads to ICE like
build/workspace/ceph-dev-new-build/ARCH/x86_64/AVAILABLE_ARCH/x86_64/AVAILABLE_DIST/centos7/DIST/centos7/MACHINE_SIZE/huge/release/
14.0.1-2751-gb268822/rpm/el7/BUILD/
ceph-14.0.1-2751-gb268822/src/tools/ceph_kvstore_tool.cc:625:1:
internal compiler error: Segmentation fault
}
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://bugzilla.redhat.com/bugzilla> for instructions.
Signed-off-by: Kefu Chai <kchai@redhat.com>