Fix a redundant-return warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/raw_ostream.cpp b/lib/Support/raw_ostream.cpp
index 11cf0ec..93428f5 100644
--- a/lib/Support/raw_ostream.cpp
+++ b/lib/Support/raw_ostream.cpp
@@ -496,8 +496,9 @@
     return 0;
   // Return the preferred block size.
   return statbuf.st_blksize;
-#endif
+#else
   return raw_ostream::preferred_buffer_size();
+#endif
 }
 
 raw_ostream &raw_fd_ostream::changeColor(enum Colors colors, bool bold,