Minor indenting fix

Author: jan.nijtmans

macosx/tkMacOSXAccessibility.c

@@ -362,11 +362,11 @@ void PostAccessibilityAnnouncement(NSString *message)
 	return value;
     }
 
-	/* Return label for buttons. */
+    /* Return label for buttons. */
     if (role && CFStringCompare(role, kAXButtonRole, 0) == kCFCompareEqualTo) {
 	NSString *value = self.accessibilityLabel;
 	return value;
-	}
+    }
 
     Tk_Window win = self.tk_win;
     if (!win) {