Checking patch stdio-common/tst-sprintf-errno.c...
error: while searching for:
  errno = -1;
#ifdef __GNU__
  TEST_COMPARE (sprintf (buf, "%m"), 35);
  TEST_COMPARE_STRING (buf, "Error in unknown error system: : -1");
#else
  TEST_COMPARE (sprintf (buf, "%m"), 16);
  TEST_COMPARE_STRING (buf, "Unknown error -1");

error: patch failed: stdio-common/tst-sprintf-errno.c:50
Applying patch stdio-common/tst-sprintf-errno.c with 1 reject...
Rejected hunk #1.