common: Update config_obs_mgr.h to work without using namespace

Signed-off-by: Adam C. Emerson <aemerson@redhat.com>

diff --git a/src/common/config_obs_mgr.h b/src/common/config_obs_mgr.h
index 25a8b05ba4b5168a4a4cc75c17a5664b994aa215..06b3cf934a53b1500d57a0d255823b6de7b3dce6 100644 (file)
--- a/src/common/config_obs_mgr.h
+++ b/src/common/config_obs_mgr.h
@@ -96,7 +96,7 @@ void ObserverMgr<ConfigObs>::for_each_change(const std::set<std::string>& change
 {
   // create the reverse observer mapping, mapping observers to the set of
   // changed keys that they'll get.
-  string val;
+  std::string val;
   for (auto& key : changes) {
     auto [first, last] = observers.equal_range(key);
     if ((oss) && !proxy.get_val(key, &val)) {