utils: Add strerror(errno) to error message

So it's easier to debug why it fails.

diff --git a/src/libply/ply-utils.c b/src/libply/ply-utils.c
index 5a79bb4dec0be75acc4bededf1c3f7f537188217..ed9219c277f7d6815264d0e506c9a9a6850312bd 100644 (file)
--- a/src/libply/ply-utils.c
+++ b/src/libply/ply-utils.c
@@ -795,11 +795,12 @@ ply_create_daemon (void)
 
       if (!ply_read (receiver_fd, &byte, sizeof (uint8_t)))
         {
+          int read_error = errno;
           int status;
 
           if (waitpid (pid, &status, WNOHANG) <= 0)
             {
-              ply_error ("failed to read status from child immediately after starting to daemonize");
+              ply_error ("failed to read status from child immediately after starting to daemonize: %s", strerror (read_error));
             }
           else if (WIFEXITED (status))
             {