Comment fix.

From-SVN: r3564

gcc/config/i860/sysv4.h

@@ -26,7 +26,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
 #define TARGET_VERSION fprintf (stderr, " (i860 System V Release 4)");
 
 /* Provide a set of pre-definitions and pre-assertions appropriate for
-   the i860 running svr4.  Note that the symbol `__SVR4__' MUST BE
+   the i860 running svr4.  Note that the symbol `__svr4__' MUST BE
    DEFINED!  It is needed so that the va_list struct in va-i860.h
    will get correctly defined for the svr4 (ABI compliant) case rather
    than for the previous (svr3, svr2, ...) case.  It also needs to be

gcc/libgcc2.c

@@ -1097,7 +1097,7 @@ asm ("___builtin_saveregs:");
 	asm ("	bri	%r1");		/* delayed return */
 	asm ("	st.l	%r28,12(%r16)"); /* pointer to overflow args */
 
-#else /* not __SVR4__ */
+#else /* not __svr4__ */
 	asm ("	.text");
 	asm ("	.align	4");
 
@@ -1135,7 +1135,7 @@ asm ("___builtin_saveregs:");
 	asm ("	mov	r30,sp");
 				/* recover stack and pass address to start 
 				   of data.  */
-#endif /* not __SVR4__ */
+#endif /* not __svr4__ */
 #else /* not __i860__ */
 #ifdef __sparc__
 	asm (".global __builtin_saveregs");