Fix help string for --enable-spec2000 option


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10564 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/configure b/configure
index a03da77..6e85e3b 100755
--- a/configure
+++ b/configure
@@ -1032,7 +1032,7 @@
   --disable-libtool-lock  avoid locking (might break parallel builds)
   --enable-purify         Compile with purify (default is NO)
   --enable-optimized      Compile with optimizations enabled (default is NO)
-  --enable-spec           Compile SPEC 2000 benchmarks (default is NO)
+  --enable-spec2000       Compile SPEC 2000 benchmarks (default is NO)
   --enable-precompiled_bytecode
                           Use pre-compiled bytecode (default is NO)
   --enable-llc_diffs      Enable LLC Diffs when testing (default is YES)