ccc: Spell mattr correctly.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65119 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/ccc/ccclib/Tools.py b/tools/ccc/ccclib/Tools.py
index 040cfac..a9db01a 100644
--- a/tools/ccc/ccclib/Tools.py
+++ b/tools/ccc/ccclib/Tools.py
@@ -332,7 +332,7 @@
                 elif arglist.getLastArg(neg):
                     attrs.append('-' + flag)
             if attrs:
-                cmd_args.append('--mattrs=%s' % ','.join(attrs))
+                cmd_args.append('--mattr=%s' % ','.join(attrs))
 
             if arglist.hasFFlag(arglist.parser.f_mathErrnoOption,
                                 arglist.parser.f_noMathErrnoOption,