VG_(malloc_aligned): accept req_alignB == 4.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@138 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/vg_malloc2.c b/vg_malloc2.c
index 718ed3a..8b6c621 100644
--- a/vg_malloc2.c
+++ b/vg_malloc2.c
@@ -1081,6 +1081,7 @@
       a power of 2.  There must be a better way to do this.  What is
       it? */
    switch (req_alignB) {
+      case 4:
       case 8: case 16: case 32: case 64: case 128: case 256: 
       case 512: case 1024: case 2048: case 4096: case 8192: 
       case 16384: case 32768: case 65536: case 131072: