Make parse.h C++ safe by avoiding "or" keyword

Fixes for g++ (4.7.2) following compiler errors when fio.h
gets included (e.g. in an external C++ ioengine):

--8<---
[...]
parse.h:31:6: error: expected unqualified-id before ‘or’ token
[...]
--->8---

Signed-off-by: Daniel Gollub <d.gollub@telekom.de>

Updated by me to apply to recent version, and fix gfio usage
of ->or as well.

Signed-off-by: Jens Axboe <axboe@fb.com>
diff --git a/options.c b/options.c
index 9f6bc8d..4dcefba 100644
--- a/options.c
+++ b/options.c
@@ -1914,18 +1914,18 @@
 			  { .ival = "wait_before",
 			    .oval = SYNC_FILE_RANGE_WAIT_BEFORE,
 			    .help = "SYNC_FILE_RANGE_WAIT_BEFORE",
-			    .or	  = 1,
+			    .orval  = 1,
 			  },
 			  { .ival = "write",
 			    .oval = SYNC_FILE_RANGE_WRITE,
 			    .help = "SYNC_FILE_RANGE_WRITE",
-			    .or	  = 1,
+			    .orval  = 1,
 			  },
 			  {
 			    .ival = "wait_after",
 			    .oval = SYNC_FILE_RANGE_WAIT_AFTER,
 			    .help = "SYNC_FILE_RANGE_WAIT_AFTER",
-			    .or	  = 1,
+			    .orval  = 1,
 			  },
 		},
 		.type	= FIO_OPT_STR_MULTI,