arm-linux: send output to stderr, as on all other platforms.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@11290 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_debuglog.c b/coregrind/m_debuglog.c
index 7b2348f..473771b 100644
--- a/coregrind/m_debuglog.c
+++ b/coregrind/m_debuglog.c
@@ -240,9 +240,9 @@
    block[0] = (Int)buf;
    block[1] = n;
    __asm__ volatile (
-      "mov  r0, #1\n\t"
-      "ldr  r1, [%0]\n\t"
-      "ldr  r2, [%0, #4]\n\t"
+      "mov  r0, #2\n\t"        /* stderr */
+      "ldr  r1, [%0]\n\t"      /* buf */
+      "ldr  r2, [%0, #4]\n\t"  /* n */
       "mov  r7, #"VG_STRINGIFY(__NR_write)"\n\t"
       "svc  0x0\n"          /* write() */
       "str  r0, [%0]\n\t"