minor cleanup, std namespacing

Added std namespace to places where there is a cpp version.

Change-Id: I60a05a7c9cdcd79cfffc3c4968005fcbe34acf81
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/test/remote_logging_test_config.cpp b/test/remote_logging_test_config.cpp
index 59feedd..a4c6207 100644
--- a/test/remote_logging_test_config.cpp
+++ b/test/remote_logging_test_config.cpp
@@ -1,6 +1,7 @@
 #include "remote_logging_tests.hpp"
 
 #include <fstream>
+#include <string>
 
 namespace phosphor
 {
@@ -13,7 +14,7 @@
 {
     std::fstream stream(filePath, std::fstream::in);
     std::string line;
-    getline(stream, line);
+    std::getline(stream, line);
     return line;
 }