Remove some minor glibc'isms.

libc/sysdeps/linux/arm/bits/sigaction.h

@@ -31,7 +31,7 @@ struct sigaction
 	/* Used if SA_SIGINFO is not set.  */
 	__sighandler_t sa_handler;
 	/* Used if SA_SIGINFO is set.  */
-	void (*sa_sigaction) __PMT ((int, siginfo_t *, void *));
+	void (*sa_sigaction) __P ((int, siginfo_t *, void *));
       }
     __sigaction_handler;
 # define sa_handler	__sigaction_handler.sa_handler
@@ -47,7 +47,7 @@ struct sigaction
     int sa_flags;
 
     /* Restore handler.  */
-    void (*sa_restorer) __PMT ((void));
+    void (*sa_restorer) __P ((void));
   };
 
 /* Bits in `sa_flags'.  */

libc/sysdeps/linux/arm/bits/siginfo.h

@@ -255,7 +255,7 @@ typedef struct sigevent
 
 	struct
 	  {
-	    void (*_function) __PMT ((sigval_t)); /* Function to start.  */
+	    void (*_function) __P ((sigval_t)); /* Function to start.  */
 	    void *_attribute;			  /* Really pthread_attr_t.  */
 	  } _sigev_thread;
       } _sigev_un;