all: Use stdplus::print over std::fprintf

Replacing `std::fprintf` with `stdplus::print`.
No logical change.

Tested: Buildable.
Signed-off-by: Michael Shen <gpgpgp@google.com>
Change-Id: I7050885c13e33244a4128aa519d163fd5b725098
diff --git a/entity_name.cpp b/entity_name.cpp
index 8048ce8..8d12bfe 100644
--- a/entity_name.cpp
+++ b/entity_name.cpp
@@ -19,6 +19,7 @@
 #include "handler.hpp"
 
 #include <ipmid/api-types.hpp>
+#include <stdplus/print.hpp>
 
 #include <cstdint>
 #include <cstring>
@@ -53,8 +54,7 @@
 
     if (data.size() < sizeof(request))
     {
-        std::fprintf(stderr, "Invalid command length: %u\n",
-                     static_cast<uint32_t>(data.size()));
+        stdplus::print(stderr, "Invalid command length: {}\n", data.size());
         return ::ipmi::responseReqDataLenInvalid();
     }
 
@@ -75,7 +75,7 @@
     // TODO (jaghu) : Add a call to get getChannelMaxTransferSize.
     if (length > MAX_IPMI_BUFFER)
     {
-        std::fprintf(stderr, "Response would overflow response buffer\n");
+        stdplus::print(stderr, "Response would overflow response buffer\n");
         return ::ipmi::responseInvalidCommand();
     }