Driver: Spell -relax-all correctly when calling the cc1as tool.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@104955 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 918f0d9..0d6cb30 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1529,7 +1529,7 @@
   if (Args.hasFlag(options::OPT_mrelax_all,
                     options::OPT_mno_relax_all,
                     !IsOpt))
-    CmdArgs.push_back("-mrelax-all");
+    CmdArgs.push_back("-relax-all");
 
   // FIXME: Add -force_cpusubtype_ALL support, once we have it.