Fix printf format inconsistencies as pointed out by gcc -Wformat-signedness.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15499 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_hashtable.c b/coregrind/m_hashtable.c
index 32219c9..dee8963 100644
--- a/coregrind/m_hashtable.c
+++ b/coregrind/m_hashtable.c
@@ -308,7 +308,7 @@
           || key_occurences[i] > 0 
           || cno_occurences[i] > 0)
          VG_(message)(Vg_DebugMsg,
-                      "%s=%2d : nr chain %6d, nr keys %6d, nr elts %6d\n",
+                      "%s=%2u : nr chain %6u, nr keys %6u, nr elts %6u\n",
                       i == MAXOCCUR ? ">" : "N", i,
                       cno_occurences[i], key_occurences[i], elt_occurences[i]);
       nkey += key_occurences[i];
@@ -316,7 +316,7 @@
       ncno += cno_occurences[i];
    }
    VG_(message)(Vg_DebugMsg, 
-                "total nr of unique   slots: %6d, keys %6d, elts %6d."
+                "total nr of unique   slots: %6u, keys %6u, elts %6u."
                 " Avg chain len %3.1f\n",
                 ncno, nkey, nelt,
                 (Double)nelt/(Double)(ncno == cno_occurences[0] ?