5261 libm should stop using synonyms.h

@@ -24,11 +24,11 @@
 /*
  * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
  * Use is subject to license terms.
  */
 
-#pragma weak sinh = __sinh
+#pragma weak __sinh = sinh
 
 /* INDENT OFF */
 /*
  * sinh(x)
  * Code originated from 4.3bsd.