Fix typo spotted by John Reiser.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12841 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/docs/xml/manual-core.xml b/docs/xml/manual-core.xml
index 109ad06..b0916b1 100644
--- a/docs/xml/manual-core.xml
+++ b/docs/xml/manual-core.xml
@@ -2227,7 +2227,7 @@
    instructions.  If the translator encounters these, Valgrind will
    generate a SIGILL when the instruction is executed.  Apart from
    that, on x86 and amd64, essentially all instructions are supported,
-   up to and including AVX abd AES in 64-bit mode and SSSE3 in 32-bit
+   up to and including AVX and AES in 64-bit mode and SSSE3 in 32-bit
    mode.  32-bit mode does in fact support the bare minimum SSE4
    instructions to needed to run programs on MacOSX 10.6 on 32-bit
    targets.