Keep inclhack.def sortable.

Keep inclhack.def sortable.  The segmentation is based on lines containing only
a slash and an asterisk

From-SVN: r74883

gcc/fixinc/inclhack.def

@@ -935,8 +935,10 @@ fix = {
 };
 
 
-/* __private_extern__ doesn't exist in FSF GCC.  Even if it did,
-   why would you ever put it in a system header file?  */
+/*
+ *  __private_extern__ doesn't exist in FSF GCC.  Even if it did,
+ *  why would you ever put it in a system header file?
+ */
 fix = {
   hackname  = darwin_private_extern;
   mach      = "*-*-darwin*";