Avoid strerror_r portability issues

runtime/bin/process_android.cc

Index: runtime/bin/process_android.cc
diff --git a/runtime/bin/process_android.cc b/runtime/bin/process_android.cc
index 9265531678c6c13bfaac87b8373f01d897e41a4b..b9d245bbb888e8e0051c7f1c6da252de79d1791c 100644
--- a/runtime/bin/process_android.cc
+++ b/runtime/bin/process_android.cc
@@ -22,6 +22,7 @@
 #include "bin/thread.h"
 
 #include "platform/signal_blocker.h"
+#include "platform/utils.h"
 
 
 extern char **environ;
@@ -644,7 +645,7 @@ class ProcessStarter {
   void SetChildOsErrorMessage() {
     const int kBufferSize = 1024;
     char error_message[kBufferSize];
-    strerror_r(errno, error_message, kBufferSize);
+    Utils::StrError(errno, error_message, kBufferSize);
     *os_error_message_ = strdup(error_message);
   }
 
@@ -655,7 +656,7 @@ class ProcessStarter {
     int child_errno = errno;
     const int kBufferSize = 1024;
     char os_error_message[kBufferSize];
-    strerror_r(errno, os_error_message, kBufferSize);
+    Utils::StrError(errno, os_error_message, kBufferSize);
     int bytes_written =
         FDUtils::WriteToBlocking(
             exec_control_[1], &child_errno, sizeof(child_errno));